60 Kopeken Soviet Union commemoratives, All-Union Agricultural Exhibition 1940, overprint Type III, lower left corner block of four, 1. printing (sheet positions 25/26 and 31/32), corner stamp with plate flaw II "i instead of l in Telsiai", both bottom marginal stamps with plate flaw IV "text TypeIII, numerals overprint Type II". Total printing of varieties only 37, hence extremely rare joined to normal stamps, perfect condition, mint never hinged, unsigned, photo certificate Gerhard Krischke BPP (1989) "Condition is sound"