These two-headed Morgan dollars were made by the John Pinches Company in 1900 to show how dies could be reversed engineered from coins according to an article in the 11/18/87 edition of Coin World.
These were struck in the following combinations with pedigree updates from SpinkSmythe's 5/11 Magnolia sale:
Silver P5125 ex Pinches (Glendining 7/47, Glendining 11/87, Eric Green, Private sale at the 1988 New York International Numismatic Convention, ANR 7/05 in cased set with 2 dies and one of the copper nickel pieces as imaged below.
Copper-nickel P5130 with 2 known as follows
1) ex Pinches-Glendining 7/47, Bowers and Ruddy 11/74, Bowers and Merena 1/84.
2) ex Pinches-Glendining 7/47, Private sale in London in 1972, ANR 7/05 in set with the silver piece.
Copper P5135 with 2 known as follows:
1) ex Pinches-Glendining 7/47, Bowers and Ruddy 2/74, Magnolia-SpinkSmythe 5/11
2) ex Pinches-Glendining 7/47, Bowers and Merena 11/74, Bowers and Ruddy 6/80, Auction 88.
Photo courtesy of American Numismatic Rarities.