I picked this up yesterday. It was filthy and had a black residue in the bottom, which I was very careful in cleaning out. It has a very rough pontil and a few interesting details - the "ruff" (is this the right term?) is a single swirl of glass, the "ribs" extend up the neck under the "ruff" and the base is dimpled, like modern wine bottles.
It has a very attractive smokey swirl through it (just visible). It measures 13.5 (high) x 10 cm (widest).
Any information gratefully received.
Thanks again,
Ian
Brighton