This is a Summit 265, a model that I never seen before. I guess, its an re-badged Petromax, the upper and the lower part of the generator and nipple are petromax. There is some stamping on the tank "junior petroleum'. The hood and inner-hood are both missing.
Summit to use in the first period of the 1930s of National Stamping Electric Work and the to the second half of the 1930s part of Erich & Graetz "Petromax". Obviousely they were assembling in a little workshop. Regards, Titoo.