Box contains 5.75" tall "Penn-Plax Action Aerating Monster" plastic figure. Figure is jointed at waist and has air tube running into back. It was to be placed in aquarium and tube would fill upper torso with air, causing body to move and release air bubbles. ©1971. Thin plastic "window" shows moderate wear with several cracks and splits and is loose from left-hand side of box, still being attached at right. Box itself has corner tip/edge wear with aged tape strips along bottom as issued. Box is Fine. Aquarium toy is exceptionally nice and clean with only 1 claw tip off left hand. Only visible when viewed closely. O/w figure is N. Mint and never removed from box. This item is 1 of the rarest Creature collectibles and is extremely rare boxed. This is a better example than the one we sold in a previous auction for over $1,600.