World Metrology Day issue of China, PRC
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Short desc: World Metrology Day
Issuer: China, PRC Date: 5/20/2015 Occasion: unset Consists of 1 stamp: (See stamps as list) 1.20y All are perf=13 |
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Short desc: World Metrology Day
Issuer: China, PRC Date: 5/20/2015 Occasion: unset Consists of 1 stamp: (See stamps as list) 1.20y All are perf=13 |
