Chinese coin of the Qing Dynasty, Emperor Renzong, 1 Jiaqing Tongbao (通宝), 1796-1820.
Unknown author<span style="display: none;">Unknown author</span>
Uppsala universitets myntkabinett (Uppsala University Coin Cabinet)<br><a rel="nofollow" class="external free" href="https://www.alvin-portal.org/alvin/view.jsf?pid=alvin-record:254971">https://www.alvin-portal.org/alvin/view.jsf?pid=alvin-record:254971</a>