Mining surveying level target, British,1930

Made:
1930 in London
maker:
E. R. Watts and Son Limited
Simple pattern mining target or movable bench mark by E. R

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Simple pattern mining target or movable bench mark by E. R
Science Museum Group
© The Board of Trustees of the Science Museum

Simple pattern mining target or movable bench mark by E. R. Watts & Son Ltd, London, England, c.1930. With possible accessory.

Details

Category:
Surveying
Object Number:
1932-50
Materials:
brass (copper, zinc alloy), glass, alcohol and metal (unknown)
Measurements:
overall: 272 mm 102 mm, 1.19kg
accessory?: 2 mm x 58 mm x 12 mm, .005kg
type:
bench mark
credit:
Rank Organisation plc; E. R. Watts & Son