So it is an Octagon as we have established. I believe it to be an American 10 gal visible, couldn't find anything else that looked like it, handle, bonnet cover, skins, octagon and hose location in relation to the pump handle. Sure would like to get one some day but they appear to be pretty pricey.
I'm interested in Deep Rock and Kerr McGee items especially if they are marked B.A. Tramp Oil