Category:Physics on stamps
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Subcategories
This category has the following 8 subcategories, out of 8 total.
Media in category "Physics on stamps"
The following 6 files are in this category, out of 6 total.
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1987 CPA 5891.jpg 565 × 800; 114 KB
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DBP 1983 1176 Schwingungskreis.jpg 1,070 × 670; 492 KB
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RUSMARKA-2336.jpg 350 × 247; 149 KB
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Russia stamp 2018 № 2389.jpg 400 × 177; 134 KB
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Stamps of Germany (BRD) 1964, MiNr 441.jpg 720 × 840; 425 KB
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Vacuum Pump Hemispheres Stamps Guericke Magdeburg.jpg 2,983 × 2,508; 6.93 MB