Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 2

Liechtenstein

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Start price: $1,000

Buyer's premium:

1964, Prince Hans-Adam II, 1.70fr violet, horizontal imperforated pair, large margins all around, nice quality, full OG, NH, VF and rare, only 32 imperforated stamps were produced, C.v. $1,750, SBK #339U, CHF4,000 as singles, Est. $1,500-$2,000 , Sc. #356Ab