Vintage Serv-It #1618 Cast Alum. Broiler-Server

Ducks, reeds, and cattails are featured on this antique 18.5" long × 13"wide hammered aluminum broiler-server by West Bend Aluminum Company. There seem to be many production runs of this piece. I believe this is an earlier one based in it's number 1618. The scattered dark spots should come off with vinegar and water.