Auction 90, Session 2 - Worldwide Rare Stamps and Postal History

Switzerland - Air Post stamps

The auction will start in __ days and __ hours

Start price: $75

Buyer's premium:

1941, Airplane over Landscapes, 30(c)-5fr and red ”Pro Aero” overprint on 1fr blue green, complete issues in blocks of four, the total is nine blocks, full OG, NH, VF, C.v. $360++, SBK #F27-34, F35, CHF552 as singles, Est. $ $120-$160, Sc. #C27-34, C35