IN٠TENEBRIS٠TAMEN٠ABSQVE٠TENEBRIS (Translation: In darkness and yet without darkness)
Obverse script
Latin
Reverse description
Key of conclave, inscription on 5 lines above.
Reverse lettering
SEDE٠VACANTE٠ANNO٠DOMINI٠MCMLXIII
FRIDERICVS
CALLORI
DI٠VIGNALE
CONCLAVIS
GVBERNATOR (Translation: Vacant Seat, Year of the Lord 1963 Federico Callori di Vignale governor of the Conclave)