[AT] Hot Bulb Engine (tractor)

[DDSS]

My son in Chicago called me. A neighbor has an old tractor that he no longer 
wants and asked my son if he would like to have it.  The neighbor says it's 
a 1939 Bosch hot bulb tractor.  My son says he's not sure the tractor is 
Bosch but for sure the engine is.  The neighbor uses a blow torch to start 
it. It uses #6 diesel.

My son said the tractor is too large to fit through the door to his barn 
(his Boomer w/cab just barely clears the top of the door opening).  He says 
this old tractor is really big.  I cannot wait to see the pictures.

I cannot find a single hit on the internet for a Bosch tractor.  Anyone know 
if Bosch ever made a tractor?

Any experience with hot bulb engines?

Thanks

Dick