I assume this is a bookend from the shape but have never seen one before. It is a handsome head study of a German Shepherd dog with nice detail including fur, teeth and tongue. Measurements are 6 inches tall by 3 inches deep and 2 3/4 inches wide with no markings. It has some light straw marks and wave lines on the bookend part all done in the making. The inside edge of the bookend bottom is open as feels rough with one small chip see photo.
Rare Crystal Glass German Shepherd Dog Bookend Vintage