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Vopel Compendium
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
This is a complex brass instrument, consisting of a nocturnal, a sundial, a lunar aspectarium, and a geometrical quadrant. The maker, Caspar Vopel (1511-1561), taught mathematics in Cologne and studied cosmography. He made a number of armillary spheres and globes.
National Museum of American History’s own descriptionCredit lineVopel Compendium. ca 1540. Vopel, Caspar. National Museum of American History. CC0.