Share 'An octagonal gold coin of 1851'

An octagonal gold U.S. coin of 50 dollars is announced by Bowers and Merena for the sale of September 13 in Beverly Hills, lot 681. The press release links to the referenced lot in the catalogue, a feature that I had already appreciated in one of the most direct competitors of this auction house. The characteristic of this coin is that it is in mint condition. No one of this type (known as Augu…