Series List

"The Adventures of Tom Sawyer" by Mark Twain (5)100 Years Trans-Mississippi Exhibition in Omaha, Nebraska (11)100th birthday of Andrew Wyeth (13)10th Anniversary of Antarctic Treaty (2)11th International Botanical Congress, Seattle. (5)120th Anniversary of American Pharmaceutical Association (5)125th Anniversary of First US Stamp (2)150th Ann. of First Recorded Successful Abdominal Operation (3)150th Anniversary of Battle of San Jacinto (4)150th Anniversary of Election of Washington as 1st President (9)150th Anniversary of the Transcontinental Railway (2019) (5)150th Birth Anniversary of Henry Thoreau (3)150th Birth Anniversary of Horatio Alger (2)150th Death Anniversary of James Hoban (2)1847 Rawdon, Wright, Hatch & Edson (33)1851-1856 Franklin, Jefferson, Washington (imperforate) (245)1857-1861 Toppan, Carpenter, and Co. (432)1861-1866 National Bank Note Co. (157)1867 National Bank Note Co. Grilled (199)1869 National Bank Note Co. (167)1870-71 National Bank Note Co. Grilled (137)1870-71 National Bank Note Co. Not Grilled (139)1873 Continental Bank Note Co. (525)1875 Continental Bank Note Co. (156)1875 Reprints of 1847 issue (3)1875 Reprints of 1857-60 Issue (11)1875 Reprints of 1861-66 Issues (10)1875 Reprints of 1869 Issue (15)1875 Reprints of 1873 Issue (28)1875 Reprints of 1875 Issue (3)1877 Balloon Postage (2)1879 American Bank Note Co. Great Americans (158)1879 American Bank Note Co. Postage Due (8)1880 Reprints of 1869 Issue (10)1880 Reprints of 1879 Issue (138)1881-1888 American Bank Note Co. Great Americans (1,843)1884 Postage Due Printing (7)1890-1893 American Bank Note Co. Great Americans (2,645)1891 Postage Due Printing (7)1894 Regular Issue (60)1894-95 BEP Postage Due (15)1895 Regular Issue (55)1895-97 BEP Postage Due (8)1897 - 1903 Regular Issue - Precancel (2)1897-1903 Regular Issue (131)1902-1908 Regular Issue (414)1902-1908 Regular Issue - Precancel (5)1908-1910 Regular Issue - Franklin and Washington Profiles (263)1910-1913 Regular Issue - Franklin and Washington Profiles (39)1912-1922 Regular Issue - Franklin and Washington Profiles (260)1912-1922 Regular Issue precancels (35)1922-1926 Regular Issue (144)1922-1934 Regular Issue - Precancels (71)1929 Regular Issue Overprints (29)1932 Regular Issue (9)1975-1981 Regular Issue (64)1982-1983 Regular Issue (14)1985 Regular Issue (27)1987-1988 Regular Issue (60)1989-1990 Regular Issue (12)1991-1994 Regular Issue (120)1995-1998 Regular Issue (57)2007 Regular Issue (27)2010-11 Lady Liberty and Flag (35)2017 Flag Definitives (11)2024 Flag Definitives (35)2025 Flag Definitives (19)20th Century Poets (11)20th Universal Postal Union Congress, Washington DC (11)20th UPU Congress Issue: Traditional Mail Delivery (12)250th Birth Anniversary of Philip Mazzei (5)25th Anniversary of CARE (2)25th Anniversary of US Savings Bond Programme (4)350th Anniversary of Landing of Pilgrim Fathers in America (2)450th Anniversary of Introduction of Sheep into North Americ (2)450th Anniversary of San Juan, Puerto Rico (2)500th Birth Anniversary of Copernicus (3)50th Anniv. of Migratory Bird Hunting and Conservation Act (2)50th Anniversary of Disabled American Veterans Organisation (3)50th Anniversary of First Transpacific Airmail Flight (2)50th Anniversary of First US Guide Dog Programme (3)50th Anniversary of International Peace Garden (2)50th Anniversary of Lindbergh's Transatlantic Flight (2)50th Anniversary of Marine Corps Reserve (3)50th Anniversary of Moon Landing (2019) (3)50th Anniversary of New York City Ballet (2)50th Anniversary of Rural Electrification Administration (7)50th Anniversary of Veterans Administration (2)75th Anniversary of First Powered Flight (6)75th Anniversary of General Federation of Women's Clubs (2)75th Anniversary of Girl Scouts of America (3)75th Anniversary of Universal Postal Union (U.P.U.) (3)75th Anniversary of Veterans of Foreign Wars Organisation (2)85th Death Anniversary of Emily Dickinson (4)91st Birth Anniversary of General Douglas MacArthur (2)A Visit From Saint Nick (2021) (6)Abigail Adams Issue (2)Abraham Lincoln (8)Adoption (2)Aeronautics Conference Issue (2)AIDS Awareness (5)Air Force, 50th Anniversary (1)Air Mail Centenary (3)Airlift Issue (1)Airmail (8)Airmail 1918 (15)Airmail 1923 (16)Airmail 1926-1934 (44)Airmail 1930-1934 (13)Airmail 1938 (4)Airmail 1941-1944 (12)Airmail 1941-1949 (2)Airmail 1946-1949 (18)Airmail 1952-1967 (44)Airmail 1968-1973 (41)Airmail 1974-1976 (5)Airmail Special Delivery (12)Alaska Highway, 50th Anniversary (1)Alaska-Yukon-Pacific Exposition Issue (4)Alexander Calder Issue (7)Aloha Shirts (20)Amelia Earhart Issue (1)America on the Move: 50s Sporty Cars (17)America: Natural World (2)America: Pre-Columbian Carvings (2)America's Libraries Issue (3)American Advances in Aviation (12)American Aircraft (21)American Architecture (14)American Architecture (1979) (5)American Architecture (1980) (7)American Arts (1973) (7)American Arts (1975) (5)American Arts Issue (21)American Bats (6)American Bicentennial (2)American Bicentennial Issue - 50 State Flags (51)American Bicentennial Issue: Boston Tea Party (12)American Bicentennial Issue: Colonial American Craftsmen (5)American Bicentennial Issue: Contributors to the Cause (11)American Bicentennial Issue: Military Uniforms (5)American Bicentennial Issue: The Spirit of '76 (7)American Bicentennial Issue: Washington at Princeton (3)American Bicentennial Issues: Benjamin Franklin (2)American Bicentennial Issues: Souvenir Sheets (80)American Bicentennial: Declaration of Independence (6)American Bicentennial: Rise of the Spirit of Independence (7)American Bicentennial: Skilled Hands for Independence (5)American Buffalo (18)American Choreographers (7)American Credo Issue (6)American Dance Issue (5)American Design (26)American District Telegraph Company (4)American Dolls (16)American Expressionists (11)American Filmmaking: Behind the Scenes (11)American Flag (27)American Folk Art (4)American Folk Art Series: Carousel Animals (6)American Folk Art Series: Duck Decoys (5)American Folk Art Series: Navajo Art (10)American Folk Art Series: Pacific Northwest Indian Masks (5)American Folk Art Series: Pennsylvania Toleware (6)American Folk Art Series: Pueblo Pottery (6)American Folk Art Series: Quilts (5)American Folk Art Series: Woodcarved Figurines (6)American Folk Art: Lacemaking (7)American Gardens (12)American Glass Issue (7)American Illustrators (21)American Indian Dances (7)American Inventors (6)American Journalists (6)American Landmarks Expedited Service Rate Series (45)American Music (2)American Music Series (37)American Music Series:Big Band Leaders (6)American Music Series:Broadway Musicals (5)American Music Series:Broadway Songwriters (7)American Music Series:Classical Composers & Conductors (10)American Music Series:Folk Musicians (6)American Music Series:Gospel Singers (5)American Music Series:Hollywood Composers (9)American Music Series:Jazz Musicians (17)American Music Series:Jazz Singers/Blues Singers (10)American Music Series:Opera Singers (6)American Music Series:Popular Singers (8)American Music Series:Songwriters (6)American Philatelic Society Issue (12)American Rapid Telegraph Company (21)American Revolution Bicentennial Issue (3)American Revolution Bicentennial: John Paul Jones (5)American Scientists (11)American Scientists (2005) (10)American Sign Language (3)American Sports Issue (3)American Sports Personalities (6)American Telegraph Typewriter Company (1)American Treasures (19)American Treasures - Quilts of Gee's Bend (21)American Trees Issue (6)American Vistas Prestorted Standard (2025) (3)American Wildlife (1981) (11)Americana Issue (110)AMERIPEX '86 Issue (50)Ameripex 86 International Stamp Exhibition: Stamp Collecting (9)Amish Quilts (5)Animal Population Control Campaign (3)Animal Rescue (12)Anniversary (2)Ansel Adams, Photographer (2024) (17)Antarctic Explorers (7)Anti-Alcoholism Campaign (3)Anti-Pollution Issue (5)Antique Automobiles Issue (7)Apollo Soyuz Space Issue (6)Apples (12)Aquarium Fish Issue (5)Arbor Day Issue (1)Arctic Animals Issue (7)Arctic Explorers (8)Army Issue (5)Arnold Palmer (1)Art of Ellsworth Kelly (2019) (12)Art of Magic (8)Art of the American Indian (11)Art of the Skateboard (2023) (11)Atlantic Telegraph Company (7)Atlas, Rockefeller Center (10)Auto Tail Fin (4)Autumn Colors (2024) (12)Aviation Pioneers (2)Aviation Pioneers (1980) (4)Aviation Pioneers (1985) (4)Aviation Pioneers (1988) (4)Aviation Pioneers (1991) (3)Aviation Pioneers (1993) (2)Aviation Pioneers (1996) (2)Aviation Pioneers: Octave Chanute (4)Baby Wild Animals (2025) (16)Backyard Games (2021) (11)Baltimore & Ohio-Connecticut River Telegraph Companies (13)Baltimore and Ohio Telegraph Companies (44)Banking and Commerce Issue (5)Barns (2021) (10)Baseball Sluggers (5)Basketball, 100th Anniversary (1)Batman 75th Anniversary (11)Battle of Monmouth Issue (3)Battlefields of the American Revolution (2025) (16)Beautification of America Issue (7)Beautiful Blooms (33)Benjamin Franklin 2006 (5)Berries (49)Bicentenary of Battles of Lexington and Concord (2)Bicentenary of Battles of Yorktown and Virginia Capes (5)Bicentenary of California (2)Bicentenary of Captain Cook's Visits to Hawaii and Alaska (5)Bicentenary of Diplomatic Relations with Morocco (2)Bicentenary of Drafting of the Articles of Confederation (3)Bicentenary of Fort Harrod, First Settlement in Kentucky (6)Bicentenary of French Alliance (2)Bicentenary of Lafayette's Landing (2)Bicentenary of Manned Flight (7)Bicentenary of Tennessee Statehood (14)Bicentenary of United States Constitution (13)Bicentenary of USA–Netherlands Diplomatic Relations (2)Bicycling (5)Bioluminescent Life (12)Birds In Winter (10)Birds of Prey (7)Birth Bicentenary (without date) (2)Birth Centenary of Carl Sandburg (3)Birth Centenary of Clara Maass (3)Birth Centenary of John Sloan (1871-1951) (2)Black American filmmaking (6)Black Heritage Series (66)Bob Hope (1)Bonsai (16)Boston 2026 World Philatelic Exhibition (2025) (4)Botanical Art (17)Boulder Dam Issue (1)Braddock's Field Issue (1)Breast Cancer Research (3)Bridges of the USA Coils (2023) (5)Bright Eyes Issue (7)Buffalo Soldiers (2)Bugs Bunny, 80th Anniversary (12)Building a Nation (18)Bureau of Engraving and Printing Centennial (3)Butterflies (16)Butterflies (1977) (6)Buzz Lightyear : Go Beyond (2022) (11)Byrd Antarctic Issue (2)Cactus Flowers (16)California Pacific Exposition Issue (1)California State Telegraph Company (12)CAPEX Issue (16)Carnival Nights (2024) (12)Carnivorous Plants (5)Carolina-Charleston Issue (1)Carousel Horses Issue (5)Carriers' Stamps (96)Cats Issue (5)Celebrate the Century Issue (164)Celebrations (3)Celebrity Chefs (7)Centenary (1976) of Colorado Statehood (4)Centenary International Philatelic Exhibition Issue (3)Centenary of American Kennel Club (6)Centenary of Brooklyn Bridge (2)Centenary of Comic Strips (25)Centenary of Institute of Certified Public Accountants (2)Centenary of Kentucky Derby (3)Centenary of Professional Baseball (3)Centenary of the Sokol Organization in America (25)Centenary of Wyoming Statehood (2)Century of Progress Issue (4)Certified Mail Stamps (1)Champions of Liberty (26)Champlain's Survey 400th Anniversary (3)Charles and Ray Eames (17)Charles M Schulz, Cartoonist, Birth Centenary (2022) (22)Cherokee Strip Land Run Centennial (3)Cherry Blossoms Centennial (3)Children's Stamp Design (5)Chinese Lunar Year Animals 2005 (14)Chinese Lunar Year Animals 2006 (13)Chinese New Year 1993 - Year of the Rooster (1)Chinese New Year 1994 - Year of the Dog (1)Chinese New Year 1995 - Year of the Pig (1)Chinese New Year 1996 - Year of the Rat (2)Chinese New Year 1997 - Year of the Ox (1)Chinese New Year 1998 - Year of the Tiger (1)Chinese New Year 1999 - Year of the Rabbit (1)Chinese New Year 2000 - Year of the Dragon (1)Chinese New Year 2001 - Year of the Snake (2)Chinese New Year 2002 - Year of the Horse (2)Chinese New Year 2003 - Year of the Ram (1)Chinese New Year 2004 - Year of the Monkey (1)Chinese New Year 2008 - Year of the Rat (2)Chinese New Year 2009 - Year of the Ox (1)Chinese New Year 2010 - Year of the Tiger (2)Chinese New Year 2011 - Year of the Rabbit (2)Chinese New Year 2012 - Year of the Dragon (2)Chinese New Year 2013 - Year of the Snake (3)Chinese New Year 2014 - Year of the Horse (2)Chinese New Year 2015 - Year of the Ram (2)Chinese New Year 2016 - Year of the Monkey (2)Chinese New Year 2017 - Year of the Rooster (1)Chinese New Year 2018 - Year of the Dog (1)Chinese New Year 2019 - Year of the Pig (1)Chinese Resistance Issue (1)Christmas (2018) (17)Christmas 1963 (4)Christmas 1964 (12)Christmas 1965 (86)Christmas 1966 (118)Christmas 1968 (8)Christmas 1969 (8)Christmas 1969 Precancels (12)Christmas 1970 (16)Christmas 1970 Precancels (8)Christmas 1971 (3)Christmas 1972 (4)Christmas 1973 (3)Christmas 1974 (4)Christmas 1975 (6)Christmas 1976 (9)Christmas 1977 (4)Christmas 1978 (5)Christmas 1979 (8)Christmas 1980 (7)Christmas 1981 (6)Christmas 1982 (11)Christmas 1983 (3)Christmas 1984 (4)Christmas 1985 (4)Christmas 1986 (3)Christmas 1987 (2)Christmas 1988 (3)Christmas 1989 (21)Christmas 1990 (16)Christmas 1991 (39)Christmas 1992 (20)Christmas 1993 (35)Christmas 1994 (23)Christmas 1995 (26)Christmas 1995 - Santa and Children (36)Christmas 1996 (44)Christmas 1997 (21)Christmas 1998 (50)Christmas 1999 (40)Christmas 2001 (10)Christmas 2001 - Santa's (31)Christmas 2002 (10)Christmas 2003 (33)Christmas 2004 (38)Christmas 2005 - Christmas Cookies (25)Christmas 2006 (7)Christmas 2007 (39)Christmas 2008 (40)Christmas 2009 (26)Christmas 2011 (7)Christmas 2012 (21)Christmas 2013 (25)Christmas 2013 - Gingerbread Houses (12)Christmas 2014 (8)Christmas 2015 - Charlie Brown (15)Christmas 2016 (11)Christmas 2017 - Christmas Carols (10)Christmas 2019 - Wreaths (10)Christmas 2020 - Our Lady of Guápulo (7)Christmas 2022 : Virgin and Child (7)Cinco de Mayo (2)Circus Issue (5)Civil War (51)Civil War Centennial Issue (6)Civilian Conservation Corps, 50th Anniversary (3)Classic Automobiles Issue (7)Classic Books Issue (6)Classic Films Issue (5)Classic Movie Monsters (7)Classics Forever (7)Cloudscapes (16)Coastal Birds (11)Colorful Celebrations (12)Columbian Exposition Issue (2,349)Columbus' Landing in Puerto Rico, 500th Anniversary (1)Colusa, Lake and Mendocino Telegraph Company (4)Comedians Issue (14)Commercial Union Telegraph Company (4)Common Buckeye Butterfly (9)Computer Vended Postage Stamps (240)Connecticut Tercentenary Issue (1)Constellations (6)Constitution Bicentennial Series (6)Consumer Education (2)Continental Telegraph Company (6)Coral Reefs (8)Corals (2019) (10)Corsage & Boutonniere (2020) (2)Cowboys of the Silver Screen (5)Cranes Issue (6)Crops of the Americas (34)Cycling (3)Dag Hammarskjold Issue (4)Dahlias (2025) (27)Daniel Webster Issue (1)Dany Thomas, Birth Centeary (1)Davy Crockett (1786-1836) Commemoration (4)Day of the Dead Festival (2021) (11)DC Comic Book Heroes (22)Dead Letter Office Seals (9)Dean Acheson (1)Death Bicentenary of Father Junipero Serra (2)Dedication of Palomar Observatory (2)Deep Sea Creatures (7)Definitive Precancels 1962-63 (5)Definitives 1962-63 (27)Definitives 1973-1974 (31)Delicioso (8)Desert Plants (9)Desert Shield & Desert Storm (6)Disney Villains (12)Distinguished American Diplomats (7)Distinguished Americans (31)Distinguished Marines (5)Distinguished Sailors (6)Distinguished Soldiers Issue (5)District of Columbia Bicentennial (2)Diwali (1)Dogs at Work (6)Dolley Madison Issue (2)Dolphin (1)Dragonfly (1)Dragons (5)Drug Free USA (1)Duke Paoa Kahanamoku Commemoration (2)Dungeons And Dragons, 50 Years (2024) (12)Dwight D. Eisenhower Commemoration (2)Dwight D. Eisenhower, Birth Centenary (1)Dwight David Eisenhower (4)Eagle (27)Eagle Type of 2003 (11)Early Football Heroes (5)Earth Day 50th Anniversary (2)Earth Day Issue (6)Earthscapes (17)Edna St. Vincent Millay Issue (2)Education Issue (2)Edward Hopper (1)Edward R. Murrow (1)Eid (10)Electric Light's Golden Jubilee Issue (4)Electronics Progress Issue (9)Elephant (2022) (7)Emancipation Proclamation Issue (2)Emilio Sanchez, Artist (2021) (6)Emily Bissell (1861-1948) Commemoration (4)Endangered Flora Issue (6)Endangered Species (17)Endangered Species Act, 50 Years (2023) (22)Energy Conservation Issue (4)Energy Issue (3)Enjoy The Great Outdoors (2020) (7)Ericsson Memorial Issue (1)Espresso Coffee Beverages (2021) (6)Everett Dirksen (2)Express Mail (20)Extreme Sports Issue (6)F Flower Non-Denominated Stamp (1991) (1)Family Planning Issue (3)Famous Americans - Composers (5)Famous Americans Issue - Artists (5)Famous Americans Issue - Authors (5)Famous Americans Issue - Educators (5)Famous Americans Issue - Inventors (5)Famous Americans Issue - Scientists (5)Famous Americans Issues - Poets (5)Famous Trains Issue (8)Farmers Market (6)Father Theodore Hesburgh (2)Fauna (2007) (10)Fauna (2012-2015) (4)Favorite Children's Book Illustrations (9)Ferns (25)FIFA World Cup 1994 - USA (7)Fifth International Philatelic Exhibition Issue (4)Fight against Alzheimer's disease (2)Fins and Chrome (7)First Continental Congress Issue (5)First Flight of Wright Brothers, Cent. (4)First Responders (1)Fish Issue (7)Fishing Flies Issue (11)Fishing Lures (2025) (7)Flag (132)Flag Act of 1818 (1)Flag and Anthem Issue (16)Flag and Freedom Definitive (2023) (19)Flag and Liberty (82)Flag for All Seasons (56)Flag Issue (20)Flag of USA (2022) (10)Flag over Chalkboard (10)Flag over City (41)Flag over Farm (11)Flag over Field (3)Flag over Porch Issue (67)Flag over Supreme Court Issue (30)Flags of Our Nation (78)Flags on Barns (2022) (6)Flora and Fauna Issue (194)Floral Arrangements (2022) (4)Floral Definitives (2024) (15)Floral Geometry Definitives (2022-) (8)Floral Greetings (2024) (4)Florida Settlement, 400th Anniversary Issue (134)Flowering Trees (7)Flowers (57)Flowers (1981) (5)Flowers from the Garden (12)Folk Heroes Issue (5)Football Coaches Issue (9)Fort Kearny (1)Four Flags (50)Franklin D. Roosevelt Issue (4)Fred Rogers (1)Frederic Remington Issue (3)French Revolution Bicentennial (1)Frogs (2019) (8)From Me To You (2)Frozen Treats (14)Fruits (28)Fruits and Vegetables (2020) (13)Fruits Definitives (2016-) (13)G Makeup Rate Dove (1994) (4)G Old Glory Non-Denominated (1994) (43)Garden Delights (2024) (10)Garden Flowers (33)Garden Flowers (2021) (13)Garden Flowers Non-Profit (2022) (7)General Bernardo de Galvez (1746-1786) Commemoration (3)General Douglas MacArthur Issue (1)Geometric Snowflakes (9)George Meany (1)George Morrison, Artist (2022) (7)George Rogers Clark Issue (1)George Washington (41)Georgia Bicentennial Issue (1)Georgia O'Keefe Issue (2)Global Rate (18)Go Green (17)Gold Rush (1)Goodnight, Moon (2025) (9)Grace Kelly (1)Graf Zeppelin Issue (3)Grandma Moses (1860-1961) Commemoration (3)Great Americans (220)Great Film Directors (5)Great Lakes Lighthouses (8)Great River Road Issue (2)Greetings (2007-2009) (4)Greetings from America (102)Greetings stamp (2)Gulf Coast Lighthouses. (6)Halloween : Spooky Silhouettes (2019) (5)Hanukkah (20)Happy Birthday 2021 (2)Harding Memorial Issue (7)Harry Potter (32)Harvey Milk (2)Have A Ball! (10)Hawaii Sesquicentennial Issue (2)Hawaiian Missionary (5)Hearts (4)Helen Keller Issue (1)HemisFair '68 Exhibition, San Antonio (2)Henry David Thoreau Issue (1)Herbs (12)Heritage Breeds (2021) (12)Heroes of America (1)Hip Hop Culture (2020) (5)Hispanic Americans Issue (2)Historic Flag Series (22)Historic Preservation Issue (15)Historic Railroad Stations (2023) (8)History of Hockey (5)Holiday Baubles (27)Holiday Cheer (2025) (10)Holiday Delights (2020) (11)Holiday Elves (2022) (11)Holiday Evergreens (21)Holiday Joy (2024) (14)Holiday Season 2018 (1)Holiday Window Views (9)Horses Issue (5)Horses of the USA (2024) (7)Hospice Care (2)Hot Rods (13)Hot Wheels (11)Hubble Images (8)Hudson-Fulton Celebration Issue (2)Huguenot-Walloon Tercentenary Issue (3)Hummingbird (6)Hummingbirds Issue (7)Inauguration of First US Automated Post Office (2)Independence Day Precancels (2)Innovation (2020) (6)Innovative Choreographers (5)Insects & Spiders (21)Intercollegiate Football, 100th Anniversary Issue (3)International Philatelic Exhibition (1)International Philatelic Exhibition, New York (1)International Polar Year (3)International Space Year (6)International Stamp Exhibition AMERIPEX '86, Chicago (5)International Stamp Exhibition PACIFIC 97 (2)International Year of the Disabled (3)International Youth Year (5)Interphil 76 International Stamp Exhibition, Philadelphia (3)Isamu Noguchi (6)Jack O'Lanterns (6)Jaime Escalante (1)James Webb Telescope Image Expedited Service Stamps (2024-) (8)Jamestown Exposition Issue (12)Jefferson-Monument (3)Jim Henson & the Muppets (12)John Fitzgerald Kennedy (2)John James Audubon (1)John Trumbull (1756-1843) Commemoration (2)Johnny Appleseed (2)Joint issue with Canada (1)Juan Rodriguez Cabrillo (2)Kaleidoscope Flowers (6)Kansas City, Missouri Centenary Issue (1)Kate Smith (1)Knoxville World's Fair (5)Kosciuszko Issue (2)Kwanzaa (15)Kwanzaa 2020 (1)La Florida (6)Lady Bird Johnson (8)Landscapes (37)Latin Jazz (1)Latin Music Legends (7)Legendary Playing Fields (11)Legends of Baseball (21)Legends of Hollywood (50)Legends of the West (43)Let's Dance (5)Lewis & Clark Expedition, Bicent. (6)Lexington-Concord Issue (3)Liberty Bell "Forever" (104)Liberty Issue (82)Liberty Issue - Precancels (33)Library of Congress (2)Life Magnified (2023) (22)Lighthouses Issue (8)Lighthouses of the Mid-Atlantic (2021) (14)Lincoln Centenary of Birth Issue (4)Lincoln Sesquicentennial Issue (4)Literary Arts (43)Locomotives Issue (18)Looney Tunes (44)Los Angeles & San Gabriel Valley Railroad (1)Louis Comfort Tiffany (5)Louise Nevelson Issue (7)Louisiana Purchase Exposition Issue (23)Love - 1982 Series (6)Love - 1984 Series (5)Love - 1985 Series (2)Love - 1986 Series (1)Love - 1987 Series (1)Love - 1988 Series (3)Love - 1990 Series (11)Love - 1991 Series (10)Love - 1992 Series (3)Love - 1994 Series I (3)Love - 1994 Series II (10)Love - 1995 Series (18)Love - 1996 Series (21)Love - 1997 Series (21)Love - 1999 Series (5)Love - 2001 Series (27)Love - 2002 Series (13)Love - 2004 Series (10)Love - 2005 Series Flowers (10)Love - 2006 Series (20)Love - 2007 Series (10)Love - 2008 Series (10)Love - 2009 King & Queen of Hearts (15)Love - 2010 Series (1)Love - 2011 Series Garden (11)Love - 2012 Series Ribbons (2)Love - 2013 Series Sealed (2)Love - 2014 Series (2)Love - 2016 Series (3)Love - 2017 Series (1)Love - 2018 Series (1)Love - 2019 Series (1)Love - 2020 Series (1)Love - 2021 Series (3)Love (2022) (7)Love 2023 : Kitten and Puppy (7)Madonna and Child by Sassoferrato (2024) (7)Maine Statehood, Bicentary (1)Major Leaque Baseball All-Stars (10)March on Washington (2)Marconi Wireless Telegraph Company of America (1)Mariachi (2022) (13)Mariana Islands (1)Marine Mammals (6)Marine Sanctuaries of the USA (2022) (20)Martin Ramirez (8)Marvel Comics Superheroes (21)Mary Cassatt Issue (2)Mary Cassatt Paintings (8)Maryland Tercentenary Issue (4)Massachusetts Bay Colony Issue (1)Master of American Photography (22)Maya Angelou (2)Medal of Honor (17)Medal of Honor (1983) (2)Mercantile Telegraph Company (1)Mercury Project $ MESSENGER Mission (3)Merian Botanical Prints (24)Message Monsters (2021) (11)Michigan Centenary Issue (1)Micronesia & Marshall Islands (4)Miles Davis and Edith Piaf (3)Military Working Dogs (2019) (6)Mineral Heritage Issue (13)Minerals Issue (7)Missing Children (2)Modern American Architecture (14)Modern Art in America (14)Montgomery Blair Issue (1)Moon Landing 20th Anniv. 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