Previously used Yale 89 deadlocking nightlatch in polished brass. Five are available for sale individually or as a set. Each is in good condition - there is some white paint around the edges, which can be removed with a suitable solvent. Each lock has a 60mm backset, and uses a 5 pin cylinder. The latch can be reversed for outward opening doors. It is operated with a key on the outside and a lever on the inside. See diagram in photos for all measurements.
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