Anthony Paquet's half dollar design. It is an unfinished die trial with a scrawny eagle holding a ribbon in its beak with 13 stars above and the denomination below. Pollock lists this under 1857 and may have been a precursor to the heraldic eagle design used on J222-J223/P265-P266.
It is unique in white metal P3134 ex Nagy, 58 ANA, Kosoff-Bowers and Merena 11/85, Superior 10/89, Mike Byers, Stacks-Bowers 8/11 ANA, StacksBowers 11/14.
Judd lists one in copper which Pollock calls P3137 but its existence is unconfirmed.
Photo courtesy of Michael Byers.