112 THE COLLIERY GUARDIAN. July 19, 1918. HARDY” A R P CK WEIGHT 15 1b THE HARDY PATEHT PICK CO. LD Air Pick will prove invaluable. Try the Hardy girder holes, in fact, wherever the work is hard and slow for an ordinary pick. for Colliery Work Every Modern Colliery should use this new Labour-Saving Tool. Can be used for dozens of jobs underground. Air Pick for dressing up corners in headings, for taking down shale bands, for cutting For Coal getting in hard laminated Coal, the “ Hardy OVER 125 ORDERED DY ONE COLLIERY.