US-Wc M2.1 XI M5
Single parchment leaf from the 11th century set in double column format and measuring 21 x 28 cm. after heavy trimming. In ink, rubricated. The manuscript contains faint dry-point grids with red F-line and letter-markers for A and C; there are instances of heightened neumes and of B-flat.
Selected bibliography: 

de Ricci

Complete / partial inventory: 
complete inventory
Full source / fragment: 
Fragment or Fragmented