P-VV (Vila Viçosa) Biblioteca do Palácio Real A.M. D-004
Index later added on folio 1r.
The book seems to be incomplete, appearing to be the first part of a larger book later rebound.
ALEGRIA, José Augusto Alegria, Biblioteca do Palácio Real de Vila Viçosa (Lisboa, Fundação Calouste Gulbenkian, 1989).
Semi-mensural notation over a 5-line red staff with C and F clefs.