MMDB

Antiphon Ecce ego johannes vidi ostium apertum in celo et ecce sedes posita erat in eo et in medio sedis et in circuitu ejus qua tuor animalia plena oculis ante et retro et dabant gloriam et honorem et benedictionem sedenti super thronum viventi in secula seculorum. London, British Library, Additional 23935, fol. 362r

Invitatory Regem evangelistarum dominum. Venite adoremus. State Library of Victoria, Ms *096.1 R66A: The Poissy Antiphonal, fol. 374r

Invitatory Psalm Venite exultemus State Library of Victoria, Ms *096.1 R66A: The Poissy Antiphonal, fol. 374r

Antiphon In medio et in circuitu London, British Library, Additional 23935, fol. 362r

Antiphon In medio et in circuitu London, British Library, Additional 23935, fol. 374r

Antiphon Tua sunt hec chri ste London, British Library, Additional 23935, fol. 362v

Antiphon Tua sunt hec chri ste London, British Library, Additional 23935, fol. 374r