
2 9 c m
40cm
actual image size: 32cm x 21cm
Description
Magnetic compases are portable and easy to use for rapid survey where high accuracy is not required. This example, made by Matthew Berge, succesor and son-in-law to the renowned London Maker, Jese Ramsden, was suitable for route marching and simple navigation.
Image Details
Image Ref.
10282306
© Science Museum / Science & Society Picture Library