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

Soviet Union Stamps of 1941-91

The auction will start in __ days and __ hours

Start price: $1,200

Buyer's premium:

1961, Gliders, 4k black green and red, perforation L12½ instead of comb 12½, block of four, slightly folded along horizontal perforation, full OG, NH, VF and rare genuine multiple, Raritan Stamps guarantee, Est. $2,000-$2,400 , Sc. #2497 var