Schlage L9453L03A626 L583-363 Kit - 03a Entry Mortise Lock W/ Db Ada T

Latchbolt retracted by knob/lever from either side unless outside is locked by 20° rotation of thumbturn. Deadbolt thrown or retracted by 90° rotation of thumbturn. When locked, key outside or knob/lever inside retracts deadbolt and latchbolt simultaneous