Image

Saco-Lowell Shops 4-Roll Drawing Frame.

Credits
Image courtesy of the Smithsonian Libraries.
Member Institutions
Smithsonian Institution
OldImgBnkID
13214
Image Bank Media Item
4-Roller Drawing Frame
Geocentric armillary sphere

Geocentric armillary sphere, an astronomical tool that functions as a spherical astrolabe, featured in our collection of historical medical and scientific instruments.