Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Vatican City - First Flights - 1931 (July 9-10), cover delivered on line Rome - Athens - Thessaloniki, mixed franking of Vatican City 25c and Italy 50c in block of four, cancelled by Vatican ''8.7.31'' and Rome ''9.7.31'' ds, arrival and transit markings, mostly VF and rare, only 22 items carried, Est. $200-$250, Scott #4