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Dear Board, I am in the process of locating 1783 Washington & Independence tokens for a possible isotopic signature analysis by Prof. Ryan Mathur. It is hoped that through this testing we may gain a better, if still imperfect, idea of who minted them by linking the copper with the ore it was mined and smelted from. The old attribution to the Soho Mint is not as likely as it once was. There is now a strong suspicion that Sir Edward Thomason's manufactory is responsible for at least the W & I military bust types. It has been noted by Rulau & Fuld in Medallic Portraits of Wash