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

1961, Lenin, perforated 12½ proof of 20k in black and red brown on yellow background by artist P. Vasilyev, nicely centered and very fresh, gummed, VF and very rare. This design had been used for the stamp issued in 1959 commemorating 89th Anniversary of the birth of Lenin, but with dates at left of the portrait and denomination of 40k; in 1961 this design had been accepted with small changes for definitive stamp of 50k, which was produced by intaglio printing, Raritan Stamps opinion (2021), Est. $2,500-$3,000