Sad how all that's left is the manufacturing plate....
I have that same Kingston I inherited from my aunt when she passed. She bought it right before moving to Fort Lauderdale, FL in 1956. I acquired it in 1989. At some point the hose was changed from braided to vinyl, and I remember having to fabricate paper bags using pizza boxes to make a cardboard "ring." I've never seen that dolly, and I have the owner's manual with mine. IIRC it was never pictured. I'd be curious to see what it looked like if anybody has one....