December 10, 1915. THE COLLIERY GUARDIAN. 1205 Head, Wrightson & Co. Ltd., STOCKTON-ON-TEES. LONDON Office : 5, Victoria 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 ll MARCUS SCREENS, PICKING BELTS. COKE & COAL PLANTS. Steel Headgears, Ore Bins. Scraper Conveyors, Band Conveyors, Crushers, &c. Illustration of a Screening Plant recently carried out by Head, Wrightson & Co. Ltd. for an important colliery abroad. See Advt. October Sth issue, 1915.