Artifact Details

Title

The Adder

Catalog Number

102682869

Type

Physical object

Date

1891

Manufacturer

C. H. Webb

Identifying Numbers

Other number PAT'D NOV. 5th 12th 1899 Date patented

Dimensions

overall: 7 1/4 in x 10 in x 4 1/2 in

Description

The Adder machine. Larger front circular plate reads "The Adder C. H. Webb". The smaller circular plate reads "PAT'D NOV. 5th 12th 1889"

Category

Calculator/mechanical