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International Meter Convention 100th issue of Switzerland

  • Colnect-140-558-International-Prototype-Metre---Krypton-spectral-line.jpg
Short desc: International Meter Convention 100th

Issuer: Switzerland
Date: 2/13/1975
Occasion: International Meter Convention
Number/Year: 100


Consists of 1 stamp: (See stamps as list)

15(c)

All are perf=11.5


Record of changes




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