October 29, 1915. THE COLLIERY GUARDIAN. 865 “HARDIAX” “ALL STEEL” Coal-Cutter (Patented) Absolutely unequalled by anything hitherto placed on the market. 1*14 m3 -■■■■Mi • ■ ■ ■■■■'' Wn» 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.