

David Feldman traded an unused example of this vintage stamp, described as “fresh and very fine,” with a hinge remnant, for $36,600. In June 2012, Robert A Siegel sold a very fine and choice rare 1200 on 50-kopek Air Post Official issue for $37,500. At the sale conducted by the same auction house in September 2008, another impressive specimen of this rare collectible (shown here) realized $190,000 or $218,500 with buyer’s premium. One of the specimens of this unique philatelic item was sold for $63,250 at the Cherrystone auction in January 2008. Philatelists assert that no more than 50-75 copies of “Consular poltinnik” stamps were preserved. As the release of these stamps was not coordinated with the People's Commissar of the USSR, the stamps were withdrawn. The series was produced by order of the embassy of the USSR in Germany and was intended for franking service correspondence sent by air mail to Moscow. This is one of the most expensive postage stamps of Russian philately. “Consular poltinnik” is a rare 50-kopeck Russian consular tax stamp with an overprint "Air Post 1,200 germ.(an) marks ". 16832'', officially signed, in a very fine condition, was sold at Raritan Stamps in April 2017. Another specimen of the ''Kartonka'' souvenir sheet, pre-printed at the top with text: ''Obrazets k Dokladu V C I K No.

This expensive philatelic item, remarkably fresh and free of the usual toning, minor corner crease at upper right, achieved $100,000. One more copy of this rare collectible appeared at Cherrystone auction that took place in September 2010.

The “Kartonka” souvenir sheet (illustrated here) was sold for $776,250 at Cherrystone auction in 2008. The souvenir sheet consists of four stamps on thick card, with the unique three line personalized overprint “To the best shock worker of the All Russian Philatelic Society – President of the Moscow Philatelic Organization E.M. It is one of the gems of Soviet philately, given as a souvenir to invited guests of the exhibition. One of the most expensive Russian philatelic items is 1932 All-Union Philatelic Exhibition souvenir sheet, on carton paper that is world famous as “Kartonka”.

All-Union Philatelic Exhibition souvenir sheet, 1932
