1930s Pot Metal Faceted Blue Glass Brooch

Gorgeous 1930's faceted blue glass brooch. All open back and set in pot metal. Little leaf details surrounding the center. Has stampings of a patent number on back.

Measurements are as follows: 

Across: 2"

Condition:  Excellent – The piece shows typical, although minor, signs of wear. Wear to back metal and slight darkening to edge of a leaf.