Auction 90, Session 2 - Worldwide Rare Stamps and Postal History
Lot 701:
Air Post Official stamps: 1934, inverted black overprint ”11 Nov. 1934 – XIII. Servizio Aerea Speciale” on Colonial Arts Exposition air post stamp of 25c blue and brownish orange, nicely centered and very fresh, full OG, NH, VF and rare, several expert’s signs on reverse, S. Cilio certificate, Sassone #A2b, C.v. €12,000 (prorated for NH stamp), Est. $1,500-$2,000, Sc. #CO1 var
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