Circular slide rule and time zone scale

Made:: 1947 in Illinois

This image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print

License this image for commercial use at Science and Society Picture Library

Circular slide rule and time zone scale, cardboard and plastic
Science Museum Group
© The Board of Trustees of the Science Museum

Circular slide rule and time zone scale, cardboard and plastic, made 1947 by Perrygraf, Illinois for National, Massachusetts

Details

Category:: Mathematics

Object Number:: 1985-263

type:: circular slide rule

credit:: Crosby, R.C.

Cite this page

Rights

We encourage the use and reuse of our collection data.

Data in the title, made, maker and details fields are released under Creative Commons Zero . Descriptions and all other text content are licensed under a Creative Commons Attribution 4.0 licence

Using our data

Download

Download catalogue entry as json

Download manifest IIIF

Our records are constantly being enhanced and improved, but please note that we cannot guarantee the accuracy of any information shown on this website.

Circular slide rule and time zone scale

Details

Related Objects

Napier's Bones

Navigational Computor Mark III

Washington calculator for problems of reinforced concrete

Geometrical Groin Vault, string surface model

Burroughs Class 4 1000 hand operated adding and listing machine with keyboard for Sterling currency

Cassina LC1 Armchair