The metric system is a system of measurement based on a base 10 number system.
Stamp | Description |
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Australia, 7c, 1973 Scott: Weight |
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Australia, 7c, 1973 Scott: Length |
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Australia, 7c, 1973 Scott: Volume |
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Australia, 7c, 1973 Scott: Temperature |
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Pakistan, 20p, 1974 Scott: |