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EntityQ1929537· pop 8

International Prototype Metre

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Also known as International Prototype Meter

Wikidata facts

Material used: iridium
Collection: International Bureau of Weights and Measures
Location: France
Image: Platinum-Iridium meter bar.jpg
Length: 1

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inception: 1879-00-00
dissolved, abolished or demolished date: 1960-00-00

Sources (1)

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