Fabulous antique English hallmarked sterling silver & threaded glass 'ball' shaped match holder, 1917 Birmingham marks! These have always been quite collectable, the threaded sides of the thick glass globe are supposed to double as a match striker surface. Wonderful little decorative accent with a somewhat utilitarian purpose :). I haven't been able to find reference to the silversmith mark but the date mark is for 1917.
Very good condition. If you look very closely, you can see a few tiny nips to the glass threads in places but no other notable damage. See pictures for measurements.