You don't think "Vintage Computing" would be a better place? I'd suggest not mixing everything into one big thread.
Hmm, for listing pics of what people have, one big thread
would be best. A handy index for locating things.
But for detailed restoration projects, yes, separate threads. In Vintage.
Museum's have very specific requirements for what restoration is appropriate. Sometimes preserving the original patina is better and tampering with that is ill advised. Preventing loss and further degradation might just be sufficient for now.
I'm aware of all this. It also depends on the rarity of an item. For instance a couple of boxes I have are relics from the CIRRUS computer project, University of Adelaide, 1959-1962. Those are absolutely 'don't touch'.
Most other things I have are common enough that the best approach is to just clean off the dust & grime (that warehouse space was filthy, next to a highway, flaking concrete ceiling), check for urgent issues like Ni-Cad batteries and urethane foam, and where it's feasible see if can be restored to working.
The biggest and most ambitious restoration for me, would be the IBM 026 card punch machine, that is in an extremely poor state. Missing and broken parts, totally filthy & corroded, it's a tragic sight.
Then there's data recovery. Quite a bit to do here. For eg several boxes of programs on punched tape, boxes of microfiche, an Intel development system for '51 series micros, complete with the software... Lots to catalog and compare against archives to see what isn't already online.
Incidentally my work will be in ongoing communication with the ACMS, as a restorer. They don't have enough people capable of electronics/mechanical restoration.