LEO·XIII·
PONT·MAX·
ROMAE (Translation: Leo 13th Supreme Pontiff of Rome)
Obverse script
Latin
Reverse description
Radiant Cross above clouds
Reverse lettering
QUINQUAGESIMUS A SACERDOTIO LEONIS
XIII P.M.
ANNUS · MDCCCLXXXVII (Translation: Fiftieth anniversary of the priesthood of Supreme Pontiff Leo XIII Year 1887)