Click to enlargeJ773/P858

Although these are described as regular die trial pieces in the standard references, the off-metal 'trials' of this year were deliberately made for sale to collectors.

Examples exist in the following combinations:

Copper J772/P857 with only 3 or 4 known.

Aluminum J773/P858 with about a half dozen known. These were offered in full cased sets as in 1868.

Nickel J774/P859 which is probably unique. Pollock has 2 listings which I believe represent the same example.

Photo courtesy of American Numismatic Rarities.