1

St. Gallen, Stiftsbibliothek, Cod. Sang. 1760, p. 1 – Antiphonarium officii for the St. Gall Abbey Church, summer portion
http://www.e-codices.chen/sendPage/csg-1760_0001/1

License:
License
Terms of Use:
http://www.e-codices.unifr.ch/en/about/terms