The medal's obverse bears portrait of young William Penn, right. Around top, · THE · PENNSYLVANIA · SOCIRTY · / · FOUNDED · M·D·CMDCXLIV· / ·MDCCXVIII·; signed at left, DEC/M (JF monogram) CM/IX
The reverse bears three lines of text, TWENTY FIFTH DINNER / DECEMBER · XV / M · C · M · XXIII
The obverse is identical to the Pennsylvania Society's 1909 William Penn Medal. The small medal measures 38.5mm in diameter and was struck in silver-plated metal by the Medallic Art Company of New York. No mintage is reported.
References: MACo 1923-012, Marqusee 153