Parallel rule and protractor with index arm

Made:: 1865-1875 in New York

manufacturer:: Brooklyn Arms Company

Parallel rule and protractor with index arm, brass

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

Parallel rule and protractor with index arm, brass
Science Museum Group
© The Board of Trustees of the Science Museum

Parallel rule and protractor with index arm, brass, patented 1864-1865 by Simpson and Taylor and made by Brooklyn Arms Company, New York

Details

Category:: Mathematics

Object Number:: 1987-1020

type:: drawing instrument, combined scale protractor and parallel rule

credit:: Tesseract

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.

Parallel rule and protractor with index arm

Details

Related Objects

Drawing instruments by Charles Whitwell

Silver sector signed by Culpeper

Slide rule by Robert Bissaker

Geometrical Groin Vault, string surface model

Washington calculator for problems of reinforced concrete

Navigational Computor Mark III