||1861 $10 Clark, Gruber $10 Copper Dies Trial MS64 Red and Brown NGC. K-11b, R.7. Ex: "Col." E.H.R. Green. Clark, Gruber & Co. struck four off-metal ten dollar patterns in 1861, one in white metal (K-11), a copper issue with a plain edge (K-11a), another copper pattern with a reeded edge (K-11b), and a unique piece struck on an 1849 U.S. cent (K-11c). All these patterns were struck using the regular-issue dies, but only the K-11b was struck in a collar. The coin offered here represents the very rare K-11b variety, the first example of this rare issue Heritage Auctions has handled over the last two decades. The present coin is a delightful Choice example, with sharply detailed design elements and traces of original mint luster around the devices. The pleasing surfaces are mostly medium brown, with some patches of original red and no trace of carbon. A most appealing example of this rare Colorado pattern. Census: 1 in 64 Red and Brown, 1 finer (8/14). Ex: "Colonel" E.H.R. Green; Green Estate; Partnership of Eric P. Newman / B.G. Johnson d.b.a. St. Louis Stamp & Coin Co.; Eric P. Newman @ $10.00; Eric P. Newman Numismatic Education Society.
Realized $9400.00. Description courtesy of Heritage Auctions.