English: This coin is the formal script version of the *han t'ongbo (Ch. San Kan Zhong Bao), also issued in the Koryo dynasty. The Koryo had unified three separate states on the peninsula in the 10th century by conquering Silla and Paekche on the southern end. The name of this coin means "heavy treasure of the three han (peoples)" in reference to this history. I have not yet tried to clean this coin for fear of damaging it.
This file comes from the collection of Dr. Luke Shepherd Roberts and is copyrighted. Note: This permission only extends to the texts and photos of coins which are in the public domain at this link and its subpages, with the exception of the page The Manufacture of Cash Coins. It does not include any other content from www.history.ucsb.edu.
The copyright holder of this file, Dr. Luke Shepherd Roberts, allows anyone to use it for any purpose, provided that the copyright holder is properly attributed. Redistribution, derivative work, commercial use, and all other use is permitted.
This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page.
The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2018032110011865.