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Short desc: 250th Anniversary of the Death of Isaac Newton
Issuer: Mongolia Date: 3/31/1977 Occasion: Isaac Newton death Number/Year: 250 Consists of 9 stamps: (See stamps as list) 60m 60m 60m 60m d=Airmail 60m 60m 60m 60m 60m d=Airmail All are perf=11.5 Issues with this name: Republic of the Congo, Mali, Mongolia Record of changes |
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