Not sure what you mean by flattened, but I would think you're looking at
whiskey bottles. George Dickel still makes an 'Original No 12' and I think
this used to be called 'Old No 12'.
> I have a number of stoneware bottles dating to the 19th century which bear a
> small applied plaque with the words 'Old No. 12' stamped on them. They
> are a slightly odd shape, being flattened rather than round and were
> excavated from an industrial site in Sheffield. They were accompanied by
> several conventionally shaped bottles which are stamped 'Dublin Extra
> Stout' and 'Guiness Extra Stout'. I presume that they contained alcohol in
> some form, but I wondered whether anyone could cast any further light on
> the nature of 'Old No. 12'.
> Chris Cumberpatch