I like impressioning a lot, not just because I think locks are cool, but that giving an old lock that thing it needs to work again is really fun. It's a something
History of Locks - Who Invented Locks?
Lock and key - Wikipedia
110 Antique Locks and Such ideas | old keys, antique keys, vintage keys
249] What Are Skeleton Keys and How Do They Work? - YouTube
How do locks and padlocks work? - Explain that Stuff
How Do Skeleton Keys Work? | Hunker
Mortise Locks – Laura Anne Stone
When Your 100 Year Old Lock Breaks? - Kenton Brothers
Simple Ways to Pick an Old Skeleton Key Lock: 6 Steps
Mortise Locks – Laura Anne Stone
John Mark Power, Antiques Conservator: Making a Key for an English Lever Lock