https://www.lulu.com/shop/richard-estes/gradual-oesa-proprium-de-sanctis-parchment-at-cologne-germany-in-1330-1335/paperback/product-1yn645zd.html
Gradual oesa, Proprium de sanctis - Parchment at Cologne, Germany in 1330-1335
Book #798: Gradual oesa, Proprium de sanctis. Parch at Cologne, Germany in 1330-1335. It is at the Aargauer Kantonsbibliothek at Aarau, Switzerland - MsWettFm...
proprium de sanctis