Golden Gate

I know these are not rare sodas ( beers?), but I was wondering if anyone has actually pinned down the company which marketed this brand? This example has a faint and rather large slug plate around the embossing pattern. The vast majority of the Golden Gate's that I have seen are smooth based, but check out the pristine metallic pontil on this one! I do not know if this one was used more than once, and almost certainly never in the ground. I have seen one example in a deep lime green, but cannot recall if it was pontiled or not. This one looks 1850s to me. Does anyone know the ratio of smooth based to pontiled specimens out there?

 Thanks! Dale M.