commemorative medal manufactured by Treadwell Mining Start Price USD 5,000.00 Current Price USD 5,000.00 Time Left - Bid Count 0 Buy It Now Price - Reserve Price - Start Time Friday, August 15, 2008 End Time Monday, August 25, 2008 Location Salt lake city , UT See more about 'commemorative medal manufactured by Treadwell Mining' Description It is a commemorative medal manufactured by the Treadwell Mining Company on Douglas Island .  At the time, the Treadwell was the largest gold mining operation in the world and had a completely self-sufficient foundry capable of manufacturing nearly everything required to run their mining operations.  This was most likely cast in that foundry. Unfortunately, I don’t know how many were manufactured, and not many are left.  Place a Bid!