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180 points Tomte | 1 comments | 20 Oct 24 10:18 UTC | HN request time: 0.203s | source

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georgecmu ◴[20 Oct 24 13:53 UTC] No.41895374[source]▶

Soviet coins (at least post 1961) were designed explicitly with this application in mind.

1, 2, 3, and 5 kopeck coins weighed their value in grams. They could also be used to estimate lengths; 1 kopeck was 15 mm in diameter and 5 kopeck was 25 mm.

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1. ◴[21 Oct 24 04:14 UTC] No.41900635[source]▶

>>41895374 #

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Using Euro coins as weights (2004)