This two-headed muling, a business striking - not a proof, was recently rediscovered and was the subject of an article in the September 18, 2000 edition of Coin World.
This coin is probably tbe piece which was sold as lot 1532 of S. H. Chapman's sale of the Gable collection where it realized $20.00 - a huge sum for that time. It was purchased by Edgar H. Adams of Adams and Woodin fame.
It was later listed as AW318A
in Green and Hewitts 1940 Priced Catalog of US Pattern Coins. It was also listed in the Mule section of Taxay's 1976 Comprehensive Encyclopedia.
We have assigned it the following Judd and Pollock numbers J229A/P273A. It is important to note that a followup article in the October 2 edition of Coin World describes this piece as a possible mint error.
The coins recent pedigree is Chicago Mid-American coin convention, 6/2000; John R. Schuch; Superior, 10/2000, lot 4017A; Heritage July 2008 ANA.
Photo courtesy of Superior.