Patent Model - Interest-Calculator
Maker and role
Marshall Todd (b.1846, d.1915), Patentee
Production date
Feb 06 1883
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Object detail
Media/Materials
Brass, silk, paper
Measurements
34 1/2 x 19 x 1 3/8" (87.6 x 48.3 x 3.5cm)
Description
The object of Todd's invention "is to provide a new and improved device for facilitating the computing of the interest on any desired sum of money for any desired number of days, months, or years." (Patent Number 271,949)
Collection
Object number
2015.14.3450a-c
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