Telescopic prismatic compas, 1813-1840.

Telescopic prismatic compas, 1813-1840.
2 9 c m
actual image size: 32cm x 21cm


This telescopic prismatic compas was made by Charles Schmalcalder. Magnetic compases are portable and easy to use for rapid survey where high accuracy is not required. Charles Schmalcalder took out a patent for a prismatic compas design in 1813. This example includes a telescope and spirit bubble.

Image Details

Image Ref.

© Science Museum / Science & Society Picture Library

buy a print

Select size
Select finish
How many prints?

buy a framed print

buy a canvas

buy a framed canvas