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Mechanical engineering on stamps
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Media in category "Mechanical engineering on stamps"
The following 2 files are in this category, out of 2 total.
The Soviet Union 1971 CPA 4050 stamp (Mechanical Engineering Plant (Increased Productivity)).jpg
1,764 × 633; 201 KB
The Soviet Union 1971 CPA 4050 stamp (Mechanical Engineering Plant (Increased Productivity).png
1,764 × 633; 2.98 MB