Patent Model - Crayon and Eraser Holder for Blackboards

Maker and role
Irving Barnhart, Patentee
Production date
Oct 13 1885
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Object detail

Wood, iron, brass, chalk
2 x 8 3/4 x 2 1/4" (5.1 x 22.2 x 5.7cm)
Barnhart's patent states that "Blackboards and wall-slates are usually provided at the bottom with a trough for receiving the crayons, erasers, &c." His patent "consists in the combination with the trough, of a wire-netting or perforated piece held above the bottom of the trough, the crayons and erasers resting on said perforated piece." (Patent Number 328,177)
Object number
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