1176 THE COLLIERY GUARDIAN. December 10, 1915. “HARDIAX” “ALL STEEL” Coal-Cutter (Patented) Absolutely unequalled by anything hitherto placed on the market. BCM Aw t 4 \ A. *S *Z*. I A. a.. -,?AAA. Fastest and most durable percussive coal- cutter extant—^Steel from end to end. 30 “Hardiax” machines have been installed by a large North of England Colliery Company. Ask for New Catalogue. SENT ON FREE TRIAL. THE HARDY PATENT PICK CO. LTD., SHEFFIELD.