I’d start with contacting a local garage door company who might be install one that locks & unlocks with a key and T-handle.
Just being nosy, but how come you don’t want electronic?
Launched in 1977, it’s now 15 billion miles from earth. It took 5 months to fix a glitch in its computers. Think about that, the computers aboard are over 47 years old, and the engineers communicate with it using 1977 computers and their ancient language from earth. A stunning achievement!
https://abcnews.go.com/amp/Technology/nasa-voyager-1-spacecraft-sending-readable-data-back-earth/story?id=109572983
Sometimes real life intrudes and throws a curveball, which is why I figure these ancestry things are nothing more than an approximation. Family secrets tend to distort the info.
A good friend found out at 60+ years of age after parents were long gone, that his father wasn’t his birth father. Seems his mom was prone to fooling around and became pregnant. His dad married her anyway and raised my friend as his own.
I remember vacs like this, where the bag was huge and suspended from the handle, similar to the Bissell. I also remember that dust and dirt settled in the bottom 10 percent of the bag and never came close to filling it up, requiring it be emptied frequently.
As it turned out, there was more than enough wind over the deck that day that the takeoff length was less than anticipated. So much so, that the first couple of aircraft nearly clipped the island with their wingtips. Subsequent planes were told to hold the nose down a bit longer to avoid striking the island.