1963 Sede Vacante silver Governor of the Conclave's medal issued after the death of Pope John XXIII and before the election of Pope Paul VI. Around, SEDE VACANTE ANNO DOMINI MCMLXIII; In field, FRIDERICVS CALLORI DI VIGNALECONCLAVIS GVBERNATOR. Reverse: Obverse: Coat of arms of Msgr. Federico Callori di Vignale.
