Vintage Damascene Bug Moth Fly Heterochromia Brooch Pin Great condition! Has 1 red and 1 clear crystal eye (called heterochromia). See photos for details. Measures Aprox 1 1/2" long 1" wide Hook Clasp Damascene style was exported from Syria to Spain during the moorish conquest in the early 700s AD. It's a very labor-intensive handcrafted art, including engraving & metal plating.