50th Auction Anniversary Auction - Day 3

Thematik: Geschichte, Kultur / history, culture: 1976, Aitutaki. 200 years of independence of the Un
1976, Aitutaki. 200 years of independence of the United States of America. Collective, progressive double proof (9 phases) for the complete set consisting of 3 horizontal strips of 3. One time with not issued orange frame around of every strip. Dated and some printer's notes. MNH. Some creasing and paper wrinkles. One small tear. In all 54 strips of 3 (= 162 proof stamps). In this form UNIQUE.