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Lot # 525 | ** | Scott # 1763A
| 1956, Academician Alexei Krylov, 40k gray, brown and black, perforation L12 1/2 instead of comb 12x12 1/2, nicely centered and post office fresh, full OG, NH, VF and most important perforation variety of the post-War period, Raritan Stamps guarantee, Scott #1792 var . |