Lips Safe Deposit Lock

Lips key and combination safe deposit box lock.Refereed to as type 501,each lock has 84 moving parts. The renters section contains a double set of levers, operated by a double bitted key and can only be inserted once the banks single bitted key has made the keyhole accessible. The letters on the four dials must be set correctly against an index mark before the renters key can be turned to unlock. When locking up the renter only has to turn their key and the combination "Goes off" automatically.