LOCK No. 6
Used in all public Coin Collecting boxes prior to the introduction of the electronic payphones around 1988.
Subtle differences do occur and the obvious difference is the screw fixings, which were not on the front of the lock on early versions.
Fitted to the cash box compartment cover and differing keys were allocated to each lock.
These are tough locks and liable to break a drill bit.
Last revised: December 14, 2015