Abstract: A cash safe having a receptacle to hold cash inserted through a slot, an opening for removal of cash from the receptacle, a closure positionable to cover the opening, a locking device for locking the closure in position, and a clockwork timer operable on actuation of the locking device to prevent the locking device from being deactuated for a time period. The cash safe in one embodiment is arranged for actuation of the locking device by turning a knob which also winds up the clockwork timer. A key lock is operable to latch the timer so that operation of the timer to begin the time period is inhibited until release of the key lock. In another embodiment a key lock actuates the locking device and at the same time winds up the timer which inhibits timing by the timer of the time period until the key lock is moved to a condition for opening the safe. Provision is also made for actuation of a marker device to mark the contents of the safe when the safe is removed from a surface on which it rests.