Ritter's Unusual Sun-Dial World Map

"[Untitled - World and Horological Diagrams]", Ritter, Franz

A rare and extremely unusual map shows the world projected from the North Pole as if it were the table of a sundial. The landmasses are drawn to scale in proportion to their distance from the pole. The result is a very distorted, though mathematically correct, projection. Ten horological diagrams surround the central map and all are enclosed in a decorative border. The plate was designed for Ritter's first edition of the Speculum Solis in 1607, and is a synopsis of all the plates that appear in his later editions.

References: cf Shirley #270.

Condition: A

Watermarked paper with a few minute tears that have been professionally closed on verso. Also professionally remargined.