RE: Zeno's #11 entry:
Most people really notice items like this, when you take a real interest in their work.
I repaired radios and TV's, at least that long, only part time. I also tried it full time for two years. Too much work for the pay. Too many hours!
I still collect old sets and small screen portable color and B/W sets.
The first that I do is remove the cover, if I don't own a set just like it.
AFAIC, it's no fun collecting, if you don't know what's inside.