Istorum est*

Source: 
Köln (Cologne), Erzbischöfliche Diözesan- und Dombibliothek, 215
Folio: 
027r
Sequence: 
19
Feast: 
Nat. Innocentium
Office/Mass: 
V2
Genre: 
A
Position: 
R
Cantus ID: 
003451
Mode: 
8
Differentia: 
*
Manuscript Reading Full Text (standardized spelling): 
Istorum est*
Manuscript Reading Full Text (MS spelling): 
Istorum est