A Guide to the Attribution of the More Common Tenpō Tsūhō

The Tenpō Tsūhō sen was the largest of the copper cash coinage in circulation within Japan during the Edo period when the country was ruled by the Tokugawa Shogunate.  In addition to official issues, the Tenpō Tsūhō was produced by a number of feudal domains without permission from the government, and these illegal coins circulated side by side with the legitimate coinage.  Today the coins are sought after by collectors, but attribution to specific casting entities is difficult without access to references written in Japanese.  This book aims to fill that gap by providing detailed guidance for twenty of the most commonly encountered Tenpō Tsūhō.  Rubbing images found in former texts are now replaced with full color images of actual coins, with distinctive features marked in sufficient detail to provide guidance to the interested Tenpō Tsūhō collector.