Look medical to me. Do they have a manufacturer label? Model # or such? Google it and see what u got
As for my old ambulance parts I just drove up to the fire house in my ambulance and said point to anything u want off it. They got oxygen system, light flashing computer, radios, cot, and lots more. They gave me a certified paper that valued the parts at $1600! I only paid 3k for the ambo!!!!