File:Sybellenbuch watermark.png

Summary
This is an image showing how the Sibyllenbuch fragment was, from placement of the watermark, determined to be from a quarto printing. The image is from Das Mainzer fragment vom Weltgericht by Edward Schröder et al., published in Mainz, Germany in 1904, and now on Google Books at https://books.google.com/books?id=DagyCR5XTskC&pg=PT38&lpg=PT38&dq=Weltgericht+gutenberg&source=bl&ots=MJ5BV6nc1F&sig=ll9oLaszgwAzsW9qZHT3CkvzeVM&hl=en&ei=WxlQSqz0LYKItgfB6IGhBA&sa=X&oi=book_result&ct=result&resnum=2   Due to its age it is no longer in copyright.