Artifact Details

Title

Le Prompt Calculateur

Catalog Number

XB233.82

Type

Physical object

Date

ca. 1885

Manufacturer

A. M. Maurand, Paris

Place Manufactured

France

Identifying Numbers

Deprecated CHM identification number XB234.84

Dimensions

overall: 7/8 in x 4 in x 4 in

Description

A circular case containing thirty numbered insertable round nomograph-cards. On the plastic see-through lid of the case are inscribed two arrows, marked 'A' and 'B,' used in performing the calculation/conversion. Device has been photographed mounted on a plexiglass stand and with parts separated.

Category

Pre-computer: slide rule

Credit

Gift of Gwen and C. Gordon Bell

Lot Number

X6288.2012