USA, 1930 "Zeppelin Passing Globe" airmail issue, $2.60
The stamps of this series are embossed with 22kt gold foil. They can usually be found in Postal Commemorative Society Replica Stamp Albums. They were sanctioned by the Government of Antigua, but not for postal use, just for presentation purposes.
Issued 1988-12-21 according to Michel, 2018-11-01 according to Stamp Number.
