Shelfmark

Hil.396 [in: HIL PREC - shelved with BOOKS]

Maker

Hilger & Watts Ltd.

Subjects

Micrometers (Instruments); Optical instruments; Measurement; Measuring instruments

Title

Watts Optical Flats

Description

One in a binder of Watts instruments catalogues filed by topic, under the heading Miiscellaneous.
Information provided:- Purpose of Flat; Operation; Testing Micrometers; Detection of Burrs on Lapped Surfaces; A list of Catalogue numbers for 2” diameter optical flats of various kinds: TP20-29; 4” diameter optical flats lf various kinds: TP 40, 42, 43; Micrometer testing flats: TP192-197, and accessories follow.

Earliest Date

1954

Latest Date

1954

Pages

3

Address

48 Addington Square, London S.E. 5

Other Makers

Cat no

CT 21/3

Contents List

Hardback

Prices

Index

Illustrations

Yes

General Ref