Swirled enameled pendant framed on chain vintage ll3343

An unusual vintage pendant that is dominated by a enamel on metal pendant, a metal frame of wavy leaves and caviar beading. The enameling is white with swirls of red, green and brown. I believe the chain is copper. The pendant frame has a dark finish applied so am not sure about it.

The chain is 27 inches and is over the head, no clasp. The pendant is 2 inches in diameter including the frame.

Condition is vintage but solid, no scratches or damage. The finish on the chain is worn which is why I think it is copper. This would be great on a pullover sweater.