Bought them from Fair Radio Sales many years ago.
Also have the little crank generators with the fold out seat. Inside the generator case is a greasy little pouch with parts to rebuild it in the field.
CW and AM HF transceivers...the old AN/GRC-9 used extensively in WW2.
I have a very nice 32S-3 75S-3 Collins Station. Superb old Swiss Watch. With incredible mechanical CW filter. And of course a couple of generators just in case.
I even built a home brew PLL synthesizer for it that gave me general coverage. I used it on my Navy MARS frequencies. Operated under that call from 1976-1995.
Dropped out in 1995 when we moved back to TX from OK. Not sure what year they eliminated MARS altogether.