Siglum: 
US-NYcub Western MS 097
Selected bibliography: 

Catalogue entry by Consuelo Dutschke in the Digital Scriptorium: http://ds.lib.berkeley.edu/WesternMS097_20

complete imaging, metadata and Web exhibits: https://chantmanuscripts.omeka.net/

Susan Boynton and Vasare Rastonis, "Twenty-first century conservation and study of a thirteenth-century gradual," in Care and conservation of manuscripts 16, Proceedings of the sixteenth international seminar held at the University of Copenhagen 13th–15th April 2016, ed. M.J. Driscoll (Museum Tusculanum Press · 2018), 345-59

Notes on the Inventory: 
The inventory uses the modern pencil foliation, which reflects the current state of the manuscript after some folios were lost. The medieval foliation was added when the manuscript was complete.
Complete / partial inventory: 
complete inventory
Full source / fragment: 
Full source