This ca. 1900-1920 costume brooch is in the Arts & Crafts style with its hand-made, hammered construction and appearance. The green stone is probably Czech glass and is bezel-set. This pin has aged well; the brass has a nice "old gold" look. The pin measures 2 1/2" X 2" X 5/8" thick (due to curvature). It has a C-catch; this is "of the period;" the pin is in excellent original condition. There are no marks.