Charles Richards and Sons
of Imperial Works, Darlaston, South Staffordshire. Telephone: 140, 141, 142, and 230. Telegraphic Address: "Richards, Darlaston"
- 1937 British Industries Fair Advert for Bolts and Nuts; Black and Bright Bolts and Nuts of all descriptions; Telegraphic Ironwork; Railway Fastenings; Stampings, Rivets, Bright Drawn Steel Specialities, Steel Bars, etc., etc. Hi-Tensile Bolts, Staffordshire Knot Brand Carriage Bolts and Nuts. (Engineering/Metals/Quarry, Roads and Mining/Transport Section - Stand No. D.610)
- 1937 Bolt and nut manufacturers. "Hi-Strain" Bright Drawn Steels. "Ricardo" Bright Drawn Steels.