Artifact Details

Title

Monroe calculator

Catalog Number

X592.85

Type

Physical object

Date

1915 ca.

Manufacturer

Monroe Calculating Machine Company

Place Manufactured

U.S.

Dimensions

6 3/4 x 18 x 13 1/4 in

Description

Keys of varying height. This full-keyboard machine with a movable carriage united many advantages of previous adding and calculating machines. A modified stepped-drum instrument- its earliest model resulted from the collaboration of Jay R. Monroe and Frank S. Baldwin- inventor of the first U.S. pin-wheel machine.

Category

Calculator: mechanical

Subject

Mechanical calculation; Baldwin, Frank S.; Monroe, Jay R.; Moving carriage; Rotary calculator; Bay Area

Credit

Gift of Warren J. Buck and Arthur Milinowski

Lot Number

X592.85