970 THE COLLIERY GUARDIAN. November 12, 1915. Head, Wrightson & Co. Ltd., STOCKTON-ON-TEES. LONDON Office : 5, Yictoria Street, Westminster, S.W. Telegrams—“ TEESDALE, STOCKTON-ON-TEES Specialise in the Design, Manufacture and Erection of High Grade Serviceable Equipments FOR COLLIERIES AND MINES AT HOME AND ABROAD. “NOTA NOS” Coal Washing Plants MARCUS SCREENS, PICKING BELTS. COKE & COAL PLANTS. Steel Headgears, Ore Bins. Scraper Conveyors, Band Conveyors, Crushers, &c. k A. ** Illustration of a Screening Plant recently carried out by Head, Wrightson & Co. Ltd. for an important colliery abroad. See Advta October Sth issue, 1915.