P-G (Guimarães) Arquivo Municipal Alfredo Pimenta C 1370
Includes Mass materials for some days after Easter, up to Ascension Thursday (see Index of chants).
A modern hand added on Br two lines of text. The first line is "A-5-4-116" and seems to be an ancient shelf-mark, the second line corresponds to the fragment shelf-mark "1370".
From the same Missal as fragment C 1204 in the same archive.
Harmonies of Heaven and Earth: The music in the manuscripts of Guimarães (12th – 17th centuries), Guimarães, Museu de Alberto Sampaio, 2012. ISBN 978-989-97732-1-9