Artifact Details

Title

Newham's Rotary Principal Interest Demonstrator

Catalog Number

B1675.91

Type

Physical object

Date

1846 ca.

Identifying Numbers

Other number 2E-2 handwritten in pencil inside back cover
Other number 8623D handwritten in pencil inside back cover

Dimensions

overall: .25 x 9.5 x 9 1/2 in

Description

Object consists of a circular slide rule-like interest demonstrator mounted inside a book cover. Included is a one page instruction sheet which is bound into the cover.

Category

Pre-computer: other

Lot Number

B1675.01