Demonstration of the principle of survey levelling

Made:
1970-1975

Demonstration of the principle of survey levelling

Details

Category:
Surveying
Object Number:
1998-231
Materials:
brass, glass and wood
Measurements:
overall: 11.6142 x 20.0787 x 3.5433 in.; 29.5 x 51 x 9 cm
type:
levelling demonstration
credit:
Science Museum. Circulation Dept.