Crystallography issue of Belgium
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Short desc: Crystallography
Issuer: Belgium Date: 6/10/2014 Sort position: 3 Occasion: unset Consists of 2 stamps: (See stamps as list) circle 3 world d=Hexagonal Layers of Ice circle 3 world d=Cubic variant of the Haxaginal Layers of Ice All are perf= 9 Record of changes |
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