Ego signo crucis non clipeo

Source: 
Wrocław, Biblioteka Uniwersytecka, Ms. R 503
Folio: 
206v
Sequence: 
9
Feast: 
Martini
Office/Mass: 
M
Genre: 
A
Position: 
1.3
Cantus ID: 
002587
Mode: 
7
Differentia: 
C1
Differentia database: 
1--l-l-m-l-k-jk--4 144a
Manuscript Reading Full Text (standardized spelling): 
Ego signo crucis non clipeo protectus aut galea ostium cuneos penetrabo securus
Indexing notes: 
ps Domine quid multiplicati