doors - Where can I find a key for my old locks? - Home Improvement Stack Exchange

My house was build in 1938 and the whole house has these door knobs everywhere. I believe they were made by Dexter. Is there a way to ID them properly and, if so, where can I find someone who makes

lock - How does the locking mechanism work for these doors? - Home Improvement Stack Exchange

lock - Replace mortice deadlock in wooden door - Home Improvement Stack Exchange

doors - How can I remove the interior side of a Kwikset handle set with interconnect? - Home Improvement Stack Exchange

doors - Where can I find a key for my old locks? - Home Improvement Stack Exchange

Why there are two locks on my patio door? - Home Improvement Stack Exchange

doors - How do I remove this Schlage double-cylinder deadbolt with no visible screws? - Home Improvement Stack Exchange

How can I open a locked door with a half destroyed cylinder lock? - Home Improvement Stack Exchange

doorknob - Can't remove Schlage door handles - Home Improvement Stack Exchange

lock - Why won't my door's latch set open when rotated downward? - Home Improvement Stack Exchange

lock - How do I get this locked doorknob off? - Home Improvement Stack Exchange

lock - How do I disable a locking door latch? - Home Improvement Stack Exchange

Can you replace just the lever of this deadbolt latch? - Home Improvement Stack Exchange

repair - Key stuck in door lock - Home Improvement Stack Exchange

lock - How do you remove a Kwikset keyed latch - Home Improvement Stack Exchange

Enlarging a deadbolt door knob hole on a steel door - Home Improvement Stack Exchange