sorry to be vague - although think I have seen the shape somewhere before - might it be medicinal? Ht. about 138mm, and the outer 4mm of the foot appears to be folded over - am I correct. Some internal staining, unfortunately, and a flea bite to the top rim, and with some considerable wear to the underside of the foot, which has a neat ground and polished pontil about 12mm in dia. Sorry the pics. aren't too great, but wud be very interested in anyone's opinion please, and thanks for looking.