The obverse bears nude male from behind, studying a portrait held in outstretched arm. In right field, FOVNDED / IN / NEW YORK / MDCCCLVIII; in left field, signed G.B.
The reverse bears two wreaths, one of oak branches above and one of laurel below. In center, THE / AMERICAN / NVMISMATIC / SOCIETY / PARVA-NE-PERANT / MEMBERS MEDAL / 1910; signed G.B.
This medal was the 26th official issue of the American Numismatic Society. This version had a spelling error on the reverse die ("perant" instead of "pereant") but it seems that the mistake was caught before the pieces were engraved with members' names because the only observed examples have been unawarded.
The circular medal measures 77mm in diameter and was struck by Tiffany & Company. The mintage is unknown for both bronze and silver editions.
References: ANS 26