File:Astronomical table clock, signed by Caspar Behaim, movement

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Astronomical Table Clock - Gilded Brass - Clockmaker: Caspar Behaim (Chasparus Bohemus) (active 1568–84) - Vienna, Austria -…

Astronomical table clock Stock Photo - Alamy

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23 Making marvels science and splendor at the courts of europe Images: PICRYL - Public Domain Media Search Engine Public Domain Search

The Project Gutenberg eBook of Terrestrial and Celestial Globes Vol. II. by Edward Luther Stevenson.

Layered Narratives: The Northern Renaissance Gallery - The Metropolitan Museum of Art