A 'Picis' or 'Tin Weight' in Koban form, 17th and 18th centuries, itemnumber: W5101

A 'Picis' or 'Tin Weight' in Koban form
In the 17th and 18th centuries, there was a severe shortage of small change on Java. The VOC and local traders often used tin and lead to mint emergency coins or tokens.

Authentic Japanese Koban coins were struck using dies rather than cast. This object is also stamped, which likely indicates that the maker attempted to imitate the production method of genuine gold Kobans.
The weight of 38.6 grams is nearly equal to a tahil (approx. 37-38 grams), an ancient Asian unit of weight for precious metals and merchandise. The object could therefore likely be a trade weight in the form of a prestigious Japanese coin.
There are known examples of Japanese Kobans that were countermarked (additionally stamped) by the VOC on Java for local use. This object appears to be a local, base variant of this: a lead/tin token that borrows the shape and stamps of a Koban to project authority or value.

Dimensions: diameter in mm: 42,6x27,1x5,4, weigth in gram: 38,9

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