Old Compressor Identification Help Please!?!?!?

[BlueDeuce]

I picked up this 3-Phase Quite large air compressor the other day for next to nothing, and it fires right up and builds pressure! I have no idea who the manufacturer of the pump is which makes it hard to find out any specs on this unit! If anyone out there has any idea of the Make/Model of this goliath I would very much appreciate any kind of help!!

Thank You!!
Dan

 

[isb cornbinder]

I think it is an old KELLOG AMERICAN model DB462A

 

[Woodworker99]

From the shape of the intercooler and the frame casting and the oil filler cap I think it is an Ingersol Rand model 7100 ?

 

[930dreamer]

I'd say IR also, I had a three cylinder IR that looked like that but with another piston/ cylinder in the middle.