Peterboro Lock Company heavy brass Double-Knob Entry Set ca. early 1900s (1840-1940)

Double-knob mortised entry set. Salvaged from Queen's University chemistry labs.

Very heavy brass, complete with keys.

Note: This lock has no deadbolt, but comes with a privacy latch that disables the exterior knob and is guarded by a keyed cylinder lock. Suitable for an installation in an office, classroom, studio, laboratory, or condominium.