Auction 90, Session 2 - Worldwide Rare Stamps and Postal History
Lot 681:
1930, Trans-Atlantic Squadron, 7.70L deep blue and gray, four corner sheet margin blocks of four from a complete sheet of 50, absolutely excellent condition, full OG, NH, VF and rare assemblage for a serious air post collector, each stamp with Bolaffi guarantee hs and signed in pencil, C.v. $14,400 as singles, Sassone #A25, €22,000++, Est. $7,000-$8,000, Sc. #C27
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