1 Mon 'Tenshōtsūhō'

Issuer	Imperial Japanese Government
Year	1587
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Composition	Copper
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Obverse description	Central square hole surrounded by four Chinese characters in regular script (kaisho), arranged in the traditional cross-reading order: 天 (Ten) above, 通 (tsū) to the right, 寳 (hō) to the left, and 正 (shō) below, collectively reading 'Tenshōtsūhō' (Currency of Tenshō). The characters are rendered in bold, raised relief typical of Japanese cast copper coinage of the Sengoku and early Edo periods. The field between the characters and the raised inner rim surrounding the square hole is flat and unadorned. A plain raised outer rim borders the flan, which shows the characteristic rough surface texture of sand-cast production.
Obverse script	Chinese (traditional, regular script)
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Edge	Plain
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