Artifact Details

Title

Fraction of an inch adding machine (circular stylus adder or slide rule)

Catalog Number

B1635.01

Type

Physical object

Manufacturer

Waldes

Place Manufactured

US

Dimensions

overall: 1/8 in x 4 1/4 in x 4 1/4 in

Description

Object is a circular stylus adder designed to add fractions together. It bears the following notations: "Fraction of an inch adding machine;"
"Waldes Truarc retaining rings" written on top surface;" "K. Jaeger."

Category

Calculator/mechanical

Lot Number

B1635.01