International Society of Postmasters ‰ÛÒ Official Commemorative Issues
35 total. Total silver weight  35 ozt
The first medallic first day cover for 1976 pays tribute to Australia‰Ûªs 75th anniversary of nationhood, Jan. 5, 1976
The first medallic first day cover for the 70th anniversary of Israel‰Ûªs leading art institute, the Bezalel Academy of Arts and Design in Jerusalem, Feb. 17, 1976
The first medallic first day cover for the 75th anniversary of the first postage stamps of the Cayman Islands, Mar. 12, 1976
The first medallic first day cover forAdmiral Michiel Adriaanszoon de Ruyter, the Netherlands‰Ûª greatest naval hero, April 22, 1976
The first medallic first day cover for Austria‰Ûªs historic royal family, the Babenbergs, May 14, 1976
The first medallic first day cover for Hafnia 76 ‰ÛÒ Denmark‰Ûªs first international stamp exhibition held in Copenhagen, August 20 to 29, 1976, June 17, 1976
The first medallic first day cover for the United States of America‰Ûªs Bicentennial of Independence, July 4, 1976
The first medallic first day cover for the Royal National Eisteddfod, a competitive festival of Welsh bards that originated in medieval times, Aug. 4, 1976
The first medallic first day cover for Republic of Botswana‰Ûªs tenth anniversary of independence, Sept. 30, 1976
The first medallic first day cover for the laying of the first undersea communication cable between Japan and the People‰Ûªs Republic of China, Oct. 25, 1976
The first medallic first day cover for one of the first coins struck in Monaco, Nov. 9, 1976
The first medallic first day cover for the 150th anniversary of the birth of Silvestro Lega, Dec. 7, 1976
The first medallic first day cover for the centennial of the famous tennis competition at Wimbledon, England, Jan 12, 1977
The first medallic first day cover for the bicentennial of the birth of Prota Matija Nenadovic, Feb. 4, 1977
The first medallic first day cover for the primitive rock paintings in the Netherlands Antilles which have long been a subject of archaeological interest, Mar. 29, 1977
The first medallic first day cover pays tribute to the traditions and crafts of Sri Lanka, April 7, 1977
The first medallic first day cover for the 400th anniversary of the birth of Peter Paul Rubens, May 17, 1977
The first medallic first day cover for the 700th anniversary of Sopron, Hungary, June 25, 1977
The first medallic first day cover for the 100th Anniversary of Brazil‰Ûªs Sao Paulo/ Rio de Janeiro Railroad, July 8, 1977
The first medallic first day cover for the Curacao, the first steamship in the Royal Netherlands Navy and the first steamship to cross the Atlantic from Europe to South America, Sept. 28, 1977
The first medallic first day cover for the 100th anniversary of the birth of Jorgen Bronlund of Greenland, Oct. 20, 1977
The first medallic first day cover for the 1896 and 1897 expeditions of the Royal Society of London to Tuvalu, Nov. 2, 1977
The first medallic first day cover to commemorate the colorful and elaborate folk costumes of Czechoslovakia, Aug. 31, 1977
The first medallic first day cover for the fire-fighting equipment in New Zealand, Dec. 7, 1977
The first medallic first day cover honoring the Old Guernsey Prints, Feb. 7, 1978
The first medallic first day cover for the Frederiksborg Castel ‰ÛÒ Museum of Natural History in Denmark, March 16, 1978
The first medallic first day cover for the Bounty Day ‰ÛÒ January 23- the anniversary of landing on Pitcairn Island by mutineers from the famous ship H.M.S.Bounty, Jan. 9, 1978
The first medallic first day cover for Captain James Cook and his historic visit to western Canada in 1778, April 26, 1978
The first medallic first day cover for the 25th anniversary of the conquest of Mt. Everest, May 29, 1978
The first medallic first day cover for the Shire Horse Society of Great Britain on the 100th anniversary of its founding, July 5, 1978
The first medallic first day cover for the handcrafted articles created by the women of Swaziland, June 26, 1978
The first medallic first day cover for the 25th anniversary of the coronation of Her Majesty Queen Elizabeth II, Aug. 28, 1978
The first medallic first day cover for the 50th anniversary of Irish Currency of 1928, Oct. 26, 1978
The first medallic first day cover for Prince Florestan I, ruler of the tiny Principality of Monaco between 1841 and 1856, Nov. 8, 1978
The first medallic first day cover for the 200th anniversary of the founding of Victoria, the capital city of Seychelles, Dec. 15, 1978