Naval parallel rule, c. 1885, by John Bliss & Co., patented (No.224,962) in the USA by Charles D. Sigsbee in 1880

Details

Category:
Mathematics
Object Number:
1992-11
type:
rules (drawing) and parallel rules
credit:
Tesseract

Parts

Case for naval parallel rule

Case for naval parallel rule

Case for naval parallel rule, c. 1885, by John Bliss & Co., patented (No.224,962) in the USA by Charles D. Sigsbee in 1880.

Object Number:
1992-11/1
type:
case
Image ©
The Board of Trustees of the Science Museum
Naval parallel rule

Naval parallel rule

Naval parallel rule, c. 1885, by John Bliss & Co., patented (No.224,962) in the USA by Charles D. Sigsbee in 1880.

Object Number:
1992-11/2
type:
parallel rule
Image ©
The Board of Trustees of the Science Museum