Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 1

United States

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Start price: $1,000

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1901, Pan-American Exposition issue, 1c-10c, complete set of six small die proofs on wove paper, approximate size 60x50mm, nice and very fresh unit, no gum as produced, VF and scarce in complete set, C.v. $3,450, Est. $1,500-$2,000 , Sc. #294P2-99P2