1891-1922 T. Wragg & Sons 1923-1980 T. Wragg & Sons (Sheffield) Ltd
Publications (1)
Various (1920); BGS - Mineral Resources of GB (c1920s) Vols XIV, XV, XVI, XVII, XVIII - Fireclay; Arsenic & Antimony Ores; Refactory Materials, Lead & Zinc of Scotland, Rock-Salt and Brine (5 books); 777 pages