From the Conservation Lab: Using Gels to Remove Stains from the “Oratio in die Omnium Sanctorum” (1483)
The Oratio in die Omnium Sanctorum is a series of sermons written for All Saint’s Day by Thomas de Capitaneis. From the Pitts Theology Library incunabula collection, it is a small pamphlet printed in 1483 with simple paper covers. The pamphlet appears to have been partially submerged in liquid and allowed to dry. As the Read More …