628

THE COLLIERY GUARDIAN.

March 28, 1918.

MS





HARDY “SIMPLEX”

Type B5.

Extra light, for
ripping & brushing.

. . • >< ¥ . -’7$-. ...

HARDY “SIMPLEX”

Type B6.

Medium, for
drifting, etc.

HARDY “SIMPLEX”

Type B7

Heavy, for sinking.





These machines are in use to the number of many thousands all
over the world. They haYe utterly defeated all competition, and
stand supreme as examples of fast-boring rock drills of immense
durability and superb engineering finish.

TRIALS ARRANGED.

THE HARDY PATENT PICK CO. LD.