Quaratesi Polyptych: Saint Nicholas of Bari Raising Three Boys from the Dead

~Early modern rag paper contains a pictorial language that historians rarely address unless they want to place a work within a chronology. This idiom is called the watermark. Thanks to the exhaustive cataloguing by scholars such as Charles-Moïse Briquet in Les filigranes: Historique des marques du papier dès leur...