What made it click thing things were missing was looking on Ebay and saw one with just about everything you can imagine mounted on a castle.
Maybe it was a mounted distaff that "grandma" didn't like and removed but the spare holes match up in size to other places that have things in them.
It is double drive. There's nothing to turn the bobbin without it. They just don't know how to string one.
After I figured up the ratio I'm glad I'm sawing up wood rather than ran out and bought wood. It seems painfully slow.
I'm going to go more along the lines of a Schacht Reeves Saxony, just because I like the looks of it. There's a lot fewer parts to turn and that design seems easier to hide modern things like bushings and metal screws in.
Petroleum based knitter, removing that nasty oil from the ground one skein at a time.