All The Info you've been given is correct...
Im sure you gave an honest account from the info here, so he at least knows what he has. What his intentions are,are out of your hands mate...
Its up to him what becomes of it....It is a Gem to some, but unfortunately not an expensive one...
People often lose sight of rare gems when they find they have little monetary value, this is why things end up in scrappies hands and another piece of history is lost.
I hope his son finds the true value in this little piece of history.
BTW, Id put a value on this machine of around $20-$30 in its current state.
