Auction #93 Worldwide Air Post stamps and postal history, Zeppelin Flight items, philatelic rarities of the World

EXTREMELY RARE LEON TROTSKY STATIONERY LETTER CARD: 1920, L. Trotsky's portrait as the Leader of Red Army on front and ''Whites ask for peace from the Reds'' on reverse, sent free-frank by guard of Moscow Concentration Camp For Enemies located at Solianka street (Central Moscow District) to his parents in Vladimir, mainly VF and extremely rare, this is one of two recorded cards, N. Mandrovski certificate, Est. $2,000-$2,500