Electronic Gneuss-Lapidge Book: N. Orchard (1995c) Referenced in: st: 837 - Le Havre, Bibliothèque municipale, 330 4 and n. 13 mss: 921 - Rouen, Bibliothèque municipale, 274 (Y. 6) (the ‘Sacramentary of Robert of Jumièges’) 4 n. 12