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 167,701 pages of information and 247,103 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.

Herbert W. Periam: Revision history

From Graces Guide

Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.

1 July 2019

30 October 2018

13 December 2017

15 August 2017

3 May 2016

11 August 2014

29 June 2014

22 January 2014

17 July 2012

8 May 2012

25 April 2011

15 February 2011

22 April 2009

31 January 2009

19 January 2009

14 October 2008

13 October 2008

22 September 2008

18 September 2008

19 December 2007