160 THE COLLIERY GUARDIAN. ... . ......... ... . - January 26, 1917. Y0UR our„ WV* by USING ' “DIAMOND” Coal-Cutters (“DIAMOND” ELECTRIC ENCLOSED TYPE DISC COAL-CUTTER.) AND Coal-Face Conveyors D (“DIAMOND” ELECTRIC JIGGER CONVEYOR.) FOR POWER, RELIABILITY and OUTPUT DIAMOND MACHINES ARE UNEQUALLED. DIAMOND COAL-COTTER CO., Telegrams— \A/ Al E* ET I E? I Telephone- “ Diamond, Wakefield.” I I Eib Eo< ■ No. 141 Wakefield. Branch Works at UDDINGSTON, nr. GLASGOW.