Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World. Part 1

United States - Test Stamp Booklets

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Start price: $75

Buyer's premium:

1960’s-72, intact booklet of $1, brown cover with ”DUMMY” handstamp in purple, 4 panes of 6 test stamps separated by 4 silicone interleaves, fresh and VF with usual black alignment markings on reverse, C.v. $150, Est. $100-$150, Scott #TDB14