Arrow AM Series Single Cylinder Mortise Lock - Grade 1 - Vestibule

Arrow mortise locks are intended for heavy duty use in schools, hospitals and commercial buildings where security, durability and low maintenance are required. They are engineered for strength and  performance, and precisely manufactured to exacting standards.

Keys - Two nickel silver standard.
Function - Vestibule: Latchbolt operated by knob either side, except when outside knob is locked by stopworks in lock front then operated by key outside.