The Rare Book Detective: books, type, watermarks: 1664 Passe-partout used by Pulleyn
The Rare Book Detective: books, type, watermarks: 1650 Arabesque initial Z (backwards)
The Rare Book Detective: books, type, watermarks: 1485 Decorated initial Z (backwards)
The Rare Book Detective: books, type, watermarks: 1532 large inhabited initial Z