Patent Model - Improvement in Receptacles for Stationary Articles, &c.

Maker and role
William Baade, Patentee
Production date
Feb 14 1871
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Object detail

3/4 x 9 1/2 x 6 1/4" (1.9 x 24.1 x 15.9cm)
Baade's patent "relates to improvements the construction and arrangement of certain devices for object-teaching, and consists in a double case, the first case having a cover constructed so as to answer the double purpose of slate and cover, the same being of flexible material, thereby insuring lightness and less liability to break; the other having the letters, figures, object-lessons &c., arranged within it and provided with supports for holding it in proper position for use." (Patent Number 111,717)
Object number
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