1252 THE COLLIERY GUARDIAN. December 29, 1916. Y0UR “DIAMOND COAL-CUTTERS AND CONVEYORS. “DIAMOND” 5-6 UNDERCUT COMPRESSED AIR COAL-CUTTER. SPECIAL FEATURES: Simplicity, Durability, Automatic Lubrication, Ample Power, Freedom from Breakdowns, Low Running Costs. CHAIN or DISC TYPE MACHINES, AIR or ELECTRICALLY DRIVEN. Send your Enquiries at once TO THE DIAMOND COAL-CUTTER CO ."I™. WAKEFIELD. Telephone— No. 141 Wakefield. Branch Works at UDDINGSTON, nr. GLASGOW.