Ecce agnus dei qui tollit

Source: 
Praha (Prague), Národní knihovna České republiky (National Library), XIV.B.13
Folio: 
040r
Sequence: 
7
Feast: 
Hebd. Nat. Dom.
Office/Mass: 
M
Genre: 
R
Position: 
1
Cantus ID: 
006575
Mode: 
7
Indexing notes: 
there is a large space where a rubric MIGHT have been added, but it is not there;