The Rare Book Detective: books, type, watermarks: 1486 bird watermark (chicken?)
The Rare Book Detective: books, type, watermarks: 1486 bird watermark (chicken?)
The Rare Book Detective: books, type, watermarks: 1578 Watermark - hen or rooster
The Rare Book Detective: books, type, watermarks: 1589 eagle with wings displayed watermark
The Rare Book Detective: books, type, watermarks: 1622 bird watermark on later paper
The Rare Book Detective: books, type, watermarks: 1644 two headed eagle with wings splayed watermark