probably the best one I've had from a charity shop, and has a ring to die for - most were lead glass which seems a tad odd since they were generally for tavern use. Regret I now don't have the Rummer book, but suspect c. 1820 - 1850, but please shout if that's way off. Capstan stem. Snapped pontil and plenty of wear, so seen much use - height is c. 13.5 cms.