METAL STEM & Threaded bowl
Unlike the other Ronson model, this has a more usual single bore stem. The bowls are not interchangeable between the two models, the bowls for this model having a single air way at the base. The casting under the sump is “ Ronson Pat Pending”.
In natural aluminium or anodized black stem, unknown how many shapes etc of bowls were made
Also found stamped as "CITY"
the absorbtion discs for these pipes are the same size as those made for the Dr Plumb Peacemaker