"Trical", plastic circular slide rule with two volvelles for knitting calculations

Made:: France

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

Buy this image as a print

Buy

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

License

Trical'
Science Museum Group
© The Board of Trustees of the Science Museum

"Trical", plastic circular slide rule with two volvelles for knitting calculations, French, with instruction sheet

Details

Category:: Mathematics

Object Number:: 1990-673

type:: circular slide rule (knitting)

credit:: Auction Team Koln

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.

"Trical", plastic circular slide rule with two volvelles for knitting calculations

Details

Related Objects

Calculating rule by Lenoir in centimetres with conversions (slide rule)

Sector signed John Allen (sector (Gunter))

Double surface of revolution of constant negative curvature (surface model)

Revolution of constant negative curvature (surface)

Stanhope square demonstrator, c.1805. (logic demonstrator)

Comptometer, manual operation (calculating machine (full-keyboard, adding))