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Standard Datum of Levelling

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  • Colnect-2664-413-Early-Leveller-and-Standard-Datum-Repository-Tokyo.jpg
Name: Standard Datum of Levelling
Type: event
Date: 1891


Issues:
100th Anniversary of Standard Datum of Levelling Japan 1991

Not in any designs.

No synonyms.
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Next event: standardization (Russia)




Wikipedia article