Read these
about the
VITAL FACTS
CE LOCK
A marvel of lock engineering ana
a radical departure from the or-
thodox pr;,,,iples o~ lock con-
struction. Seveu pIn tumbl.ers
slide horizontally in close-fittmg
sockets, opening the lock o,l1y
when key in inserted.
Built on an Improved Principle
STRONG ... RUGGED
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Unique Seven -Pin Tumbler cylinder, tumblers operating at seven depths. 75,000 key changes
possible, of which 7,000 are now in use , leaving 68,000 additional key changes now ava ilable.
Strong tubular key for round keyhole. No center key slot. Thief-proof. Hardened steel center
plug cannot be drilled or sheared open.
Insist on ACE locks for the ultimate in security and dependal)ility. Write for details and
prices.
DISTRIBUTORS AND OPERATORS
To avoid costly lock replacements on new games, specify
ACE LOCKS before you buy. Any manufacturer can
furnish them. Distributors and operators who have spe"-
cial ACE key changes, for your use only, we will supply
manufacturers with these locks only on your written
req uest.
8
•
COIN
MACHINE
REVIEW
A standard of safet y for
years • . • Chicago Double
Bitted Lock. See No. 2430
(left) alzd No. 2137. Many
other types for every reo
quireme11t.
Ap r i 1.
19 3i1