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Issuer: North Korea
Block in sheet 19475 Date: 9/5/1977 (1977 blocks) (6, 3 x 2) 1, 1: 1, 2: 2ch d=Mactra sulcataria 1, 3: 5ch d=Natica fortunel 2, 1: 10ch d=Arca inflata 2, 2: 25ch d=Rapana thomasiana 2, 3: airmail 50ch d=Sphoeroides porphyreus |
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