Shelfmark

Hil. 471

Maker

Hilger & Watts Ltd.

Subjects

Metrology; Surveying -- Instruments

Title

Watts subtense bar

Description

After a brief survey of the instrument’s several uses, information is presented under these headings: Description; Methods of Use: Direct, Bar midway, Auxiliary base, Auxiliary base midway; Catalogue Numbers ST 580-582, SD 1-2, 5-6, 201

Earliest Date

1961

Latest Date

1961

Pages

7

Address

98 St. Pancras Way, Camden Road, London N.W. 1

Other Makers

Cat no

CS 86/2

Contents List

Hardback

Prices

Index

Illustrations

Yes

General Ref