You are looking at a Rainbow Trout aluminum serving tray or wall hanging designed by Bruce Fox. This is a interesting piece of Mid Century Modern from the 70's. This tray can do double duty by being a serving tray or hanging on a wall with the hanger on the back. Wilton had purchased the rights to Bruce Fox designs in the early 70's so this is a Wilton aluminum piece which has been discontinued. It measures 23" long x 9" wide at it's widest part and is wonderful never been used condition. Made in Columbia, PA.