Plate XIII · Roman Orders
Vol. IX (1952) · full-page plate
(fol. Enc. Coll.)
Above left: INCIPIT OF ORDO I (late 11th cent.) - Vatican Library, cod. Ottob. lat. 312, f. 137v.
Above right: INCIPIT OF ORDO I (11th cent.) - Vatican Library, cod. Vat. lat. 1147, f. 1v. Below
left: INCIPIT OF ORDO XVII (early 9th cent.) - Vatican Library, cod. Pal. lat. 574, f. 152v.
Below right: EXPLICIT OF ORDO XXIX AND ADDITIONAL NOTE (late 9th cent.) - Vatican
Library, cod. Pal. lat. 487, f. 30v.