Patent Model - Improved Composition for Slate-Surface Blackboards, &c.
Maker and role
Isaac Peirce, Patentee
Production date
Feb 10 1863
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Object detail
Media/Materials
Cedar, paper
Measurements
4 x 5 x 8" (10.2 x 12.7 x 20.3cm)
4 3/8 x 8" (11.1 x 20.3cm)
4 3/4 x 8" (12.1 x 20.3cm)
4 3/8 x 8" (11.1 x 20.3cm)
4 3/4 x 8" (12.1 x 20.3cm)
Description
Peirce "discovered or invented a new and Improved Composition for a Slate-Surface, of easy application, which readily dries and hardens into a stone-like surface upon wood, glass, printing or other paper, card-board, muslin, &c." (Patent Number 37,639)
Collection
Object number
2015.14.3704a-c
Maker
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