Best 45HCA Case Only Mortise Lock

Latch operated by rotating inside lever, rotating outside lever–only when locking toggle is in unlocked position, turning key in outside cylinder. Deadbolt operated by turning key in outside cylinder, inside turn lever, inside lever retracts deadbolt and latch simultaneously. Outside lever locked by placing locking toggle in locked position, projecting dead-bolt by key or turn lever. Outside lever unlocked by turning key in outside cylinder and placing locking toggle in unlocked position. Inside lever can not be locked. The latchbolt is deadlocked with an auxiliary deadlatch.