Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World. Part 3

Russian Air Post Stamps

The auction will start in __ days and __ hours

Start price: $300

Buyer's premium:

1922, red Airplane overprint on 45r green and black, left margin horizontal gutter block of four, perfect quality in every respect, full OG, NH, VF and scarce positional piece, Est. $500-$600 , Sc. #C1 var