Ego signo crucis non clipeo

Source: 
Cambridge, University Library, Mm.ii.9
Folio: 
595
Sequence: 
1
Feast: 
Martini,8
Office/Mass: 
M
Genre: 
A
Position: 
2.1
Cantus ID: 
002587
Mode: 
7
Differentia: 
2
Differentia database: 
1--l-l-m-l-k-jk--4 144a