Chubb Dual Control

Chubb Dual Control Safe Lock Dual Control Lock Lock

Manufactured by Chubb London C 1929 7 Lever. 4 x 4 1/2" Body Case.

The first key is inserted in the lock and its function is to set the gatings in position for the second key to throw the bolt. The lock cannot be opened by the use of the second key only. The first key is again required to set the gatings.