Plate IV · Prothyron
Vol. X (1953) · full-page plateAbove left: PROTIRO of the basilica of S. Clemente (12th cent.) - Rome. Above right: PROTIRO of the church of S. Maria Maggiore, work by G. da Campione (1350) - Bergamo. Below left: PROTIRO of the Cathedral (12th cent.) - Piacenza. Below right: PROTIRO of the collegiate church of S. Quirico (13th cent.) Val d'Orcia.



