What kind of key for this old door (mortise lock)? - Home Improvement Stack Exchange

I am helping someone with a lost key for her bedroom (interior) door; the door hardware is probably about 100 years old. There is clearly a lock and a keyhole -- see photos. What sort of key would

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uk - What sort of lock do I need? - Home Improvement Stack Exchange

Replace broken antique lockset with Mortise Lock Set for Interior Door🚪: Akrilane Mortise interior door lock set is an ideal replacement for old-style

AKRILANE Mortise Lock Set Interior Door Antique & Vintage Style Knob with Keys (Chrome)

Plantex Heavy Duty Door Lock - Main Door Lock Set with 3 Keys/Mortise Door Lock for Home/Office/Hotel (7086 - Brass Antique & Satin Black Matt) : : Home Improvement

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Old lock to pick - Home Improvement Stack Exchange

Cleaning and lubing vintage door hardware - Home Improvement Stack

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Removing old Entry Door dead bolt lock - Home Improvement Stack

Atom Heavy Duty Mortise Door Lock with Both Sided Key for Bedroom, Living Room, Main Door, Brass Antique Finish, 3 Keys

Is it possible to replace just the antique locks or will I need to

uk - What sort of lock do I need? - Home Improvement Stack Exchange

My old home locks - skeleton keys, mortise locks & doorknobs. - Momcrieff