The Rare Book Detective: books, type, watermarks: 1720 fleur de lis in double line circle with A above and N below watermark
The Rare Book Detective: books, type, watermarks: 1720 fleur de lis in double line circle with A above and N below watermark
The Rare Book Detective: books, type, watermarks: 1588 paper used by Vatican printers
The Rare Book Detective: books, type, watermarks: 1588 frontispiece (Vatican printers)