Ptolemy's Cosmography 1507 1508 watermarks Ruysch world map new states
What is it about?
It shows the development in the paper used for the 1507 and 1508 editions of Ptolemy's cosmography. It shows the discovery of new states of three maps up till now unknown. It explains when the Ruysch world map was integrated in this atlas. It shows that the development of the paper used is equal to the development of what is printed on the paper. The development of the watermarks and the states of the maps confirm each other. It presents a theory about the number of printed copies.
Why is it important?
It shows how watermarks can be used to discover and explain the production of a book or atlas and the logistics of the process. For the first time the existence of more than one state of several maps present in these atlases is described. Up till now the idea was that all maps in all editions (1478, 1490, 1507 and 1508) were the same. It reveals more information about the development of the Ruysch world map and about the year the map was printed and introduced in this atlas. It shows that the combination of maps together with a title page and text pages of these editions is at random. Obviously in 1507 printed sets of maps are bound together with a 1508 title page and text pages and vice versa. Therefore the atlases often do not contain what is printed on the binding or the title page.
The following have contributed to this page: Dr Robert Peerlings
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