In honor of the United Nations Postal Administration 25th Anniversary, the printing firm of Helio Courvoisier S.A., La Chaaux-de-Fonds, Switzerland, printed special miniature sheets (not valid for postage) to pay tribute to this milestone in U.N.P.A.'s history.
In honor of the United Nations Postal Administration 25th Anniversary, the printing firm of Helio Courvoisier S.A., La Chaaux-de-Fonds, Switzerland, printed special miniature sheets (not valid for postage) to pay tribute to this milestone in U.N.P.A.'s history.
In honor of the United Nations Postal Administration 25th Anniversary, the printing firm of Helio Courvoisier S.A., La Chaaux-de-Fonds, Switzerland, printed special miniature sheets (not valid for postage) to pay tribute to this milestone in U.N.P.A.'s history.
