This is a piece of clear smooth window glass that has been painted after a detail from Raphael's "Saint Michael Slaying the Dragon". It is about 7 1/4 by 7 3/8 inches in size.The tracing was black and then two bistre brown mattes were applied. A matte of umber brown was applied after that and then a black matte. The next step was a blue transparent enamel on the opposite side followed with a yellow transparent enamel. Thats seven times painted and fired in the kiln.