Here are a couple of pontiled bottles. Bought the San Francisco Cudworth for an insane price, I think 12 bucks at a local antique store. It's a graphite pontil bottle.
The medicine is a nice 12 sided one.I have never seen one like it before so I bought it. Prob around 1870s.
The twelve sides bottle is probably a Carbona, label only. Giggle it.
I know of the bottle you're referring to and have one somewhere, but pontlled 12-sided utilities were made by the thousands, labeled and used by many, many proprietors for their products. The Carbona company was founded in 1908, approximately 60 years after this bottle was blown.
I don't know anything about the history of this bottler other than it was from Sudbury and when it operated , none of its bottles seem to be easy to find . I don't even seem to have pictures of them...