March 20, 1914.

THE COLLIERY GUARDIAN.

613^

THE
“HMBV SIMPLEX AID HAMMER DRILL
TYPE B6,

Costs about 2d. per hour for Compressed Air,

325
“Hardy
Simplex”
B6 type
have now
been
bought
by two
large
concerns
after
months of
exhaustive
tests of
various
types.

and is admitted on all hands to be the fastest,
lightest, and most reliable drill in the world.

A®

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Driving a Stone Heading with the “ Hardy Simplex.”

Write for Catalogue and Price List to the

SOLE MAKERS-

THE HARDY PATENT PICK CO. LTD.,

SHEFFIELD.

You
cannot
afford to
buy other
machines
without
first
trying
the
“Hardy
Simplex”

FREE

OF

CHARGE.