Cube Inscribed Sphere (top)
American: Late 19th Century
Maple
4 x 4 x 4 inches
Sold, please inquire as to the availability of similar items.
4-inch wooden sphere within an open cube frame, for the study of geometry.
Cone (bottom)
English: early 19th Century
Mahogany
7 inches high; 5 1/2 inches diameter, base
Sold, please inquire as to the availability of similar items.
Cone, in three sections, with horizontal and vertical incised lines, for the study of geometry.
