Stock Photo: Psalter with weekday holiday day Hymns according to the Roman Curia, by Anonymous Sienese painter , Matteo di Giovanni, 1474, 15th Century, illuminated manuscript. Italy, Tuscany, Siena, Osservanza basilica. Detail. Salvum- illuminated page verses psalms prayer incipit: beginning initial letter plant volutes rinceaux blue yellow green red black white.