Grace's Guide To British Industrial History

Registered UK Charity (No. 1154342)

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,720 pages of information and 247,131 images on early companies, their products and the people who designed and built them.

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.

Positive Lock Washer Co: Revision history

From Graces Guide

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5 May 2024

18 April 2022

16 November 2018

15 February 2018

13 July 2016

21 March 2014

19 March 2014

13 March 2014

21 February 2014

23 January 2014

25 February 2013

31 July 2010

23 May 2010

19 January 2009

28 November 2008

25 October 2007

21 October 2007