magictransistor:Leonhard Thurneysser, Astrolabium, ca. 1575.
magictransistor:Leonhard Thurneysser, Astrolabium, ca. 1575. -- source link
Tumblr Blog : magictransistor.tumblr.com
magictransistor:Leonhard Thurneysser, Astrolabium, ca. 1575. -- source link
Tumblr Blog : magictransistor.tumblr.com