Artifact Details

Title

Slide rule

Catalog Number

102631510

Type

Physical object

Manufacturer

Johnston Brothers, Inc.

Place Manufactured

U.S.

Identifying Numbers

Other number P144 Donor's ID number for rule

Dimensions

overall: 1/4 in x 6 1/4 in x 2 in; overall: 1/4 in x 6 in x 1 1/4 in

Description

The back is stamped: "Johnston Brothers, Inc.;lPackaged Boiler Manufacturers; Ferrysburg, Michigan; Pioneers of Submerged Rear Combustion Chamber Boilers." Also has the Johnston Brothers Logo in green. The object consists of the slide rule and case.

Category

Pre-computer: slide rule

Credit

Gift of Mike Konshak

Lot Number

X3741.2007