Large Collection 1970's to 1980'smemorative Stamps; mostly American , includes an album of first day covers from 1939 Worlds Fair to "Space" related issues, Souvenir Mint Sets with enclosures, 1970's to 1980's with original printed folders and envelopes, a folder of never used full sheetmemorative stamps 8 cents to 40 cents, about 30 Centennial or Peace medallions with enclosures and envelopes, 5 packs of post cards and matching cancelled stamps celebrating the Chinese Art in the National Palace Museum, Taiwan, 1973, etc.