NGC MS 61 (6640663-018).
Av. CLEMENS* X - PONT* MAX. Shield festooned with the Sovereign Pontiff's coat of arms and surmounted by his attributes.
Rv. DILIGIT. DNVS. PORTAS. SION. View of the Holy Door of St. Peter's Basilica in the Vatican with pilgrims arriving from both sides; in the exergue: (date) around the arms of Cardinal Giovanni Battista Costaguti, Master of the Mint.
MIR.1942/1 - Berman 2007; Silver - 31.89 g - 44 mm - 12 h