This extremely rare design was struck only in white metal. To see images of all of these, click
Only two examples are believed confirmed as follows:
1) Boosel-RARCOA 4/72, Bass-B/R 5/99, Share-ANR 9/03, southern collection, Simpson-Heritage 11/20 - PCGS64, illustrated above
2) Kreisberg 6/65?, Harte-B/R 3/81, Wyoming collection.
Photo courtesy of American Numismatic Rarities.