METAL STEM & Threaded bowl
Brebbia from Italy,no details except the name was Radiator, unlike any so far seen. only these images.
It appears they were sold in quantity to Mastercraft, New York in period 1962-1965. There was some new stock still around in United Kingdom in 2004, checking that out now
I am told the stem on the lower image is actually a badly fitting Magic Inch stem !!
Still seeking further information
There is another more recent Brebbia Radiator, which, in 2011 still comes up on ebay unused. It seems to be an almost exact copy of the Eagle Dry. It is here as Brebbia-Radiator -2
For current Brebbia info click on link.. www.brebbiapipe.it