Traveler's sundial (taken from en.wikipedia)

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This image was originally uploaded on en.wikipedia.org by user en:User:Tagishsimon, and is Public domain as affirmed in page en:User:Tagishsimon/Gallery - Gutenberg Books 4

Update history:

00:06, 26 Mar 2005 . . Tagishsimon (82655 bytes) (Traveler's sundial - Project Gutenberg eText 15050.png From http://www.gutenberg.org/files/15050/15050-h/15050-h.htm {{PD-Gutenberg}})