2 bifolios from an apparently-large manuscript, re-used as covers for documents stemming from the notarial archive of the district of Ceccano, approximately five miles south of Frosinone, dating from 1523-25 and copied by the notary Jacobellus Augustini Paniscaldi (protocollo 12 from Busta 3).
The bifolios have shelfmarks Collezione delle pergamene 266 (31) and Collezione delle pergamene 267 (38).
Each bifolio was unfolded and then refolded along its widths to form a long, narrow cover for the notarial documents. Like certain of the Mancini folios which were used for similar purposes, this reuse has caused the loss of music along the middle of most pages. Most of the contents of the folio can, however, still be read. When refolded along the original (that is, music manuscript) fold, a single work is transmitted on each page. All four works survive incompletely.
Fr. 31 has a surviving foliation number of ‘C XXXIII’; fr. 38 has a number of 217, written in arabic. The rpesence of both reveals that the bifolios was once part of large manuscript.
Foliation given in this inventory after Cuthbert (2006), 321: 'The foliation designed by Gialdroni and Ziino has the advantage of deemphasizing order among the folios—we do not know whether f. W precedes or follows f. X, for instance—but at the expense of removing connections between a folio’s recto and verso, and even calling some verso faces (containing only cantus voices) rectos.'