LOCKS No. 42
For use with Cover No. 50C.
Used in the armoured public 700 type Coin Collecting box and some of the later variants.
Fitted to the engineers compartment cover and differing keys were allocated to each major exchange area. i.e. 42BL where BL is the area code.
The barrel will revolve 360 degrees with the key inserted.
Last revised: December 26, 2020