This is a vintage Knapp-Monarch “Therm-a-Chest” steel picnic cooler/ice chest, manufactured in St. Estimated Era? Circa: 1950s – early 1960s? Key Details: The mid-century logo design, rib-stamped painted steel body, galvanized metal interior liner, drop-in aluminum top tray, and red plastic drain spout cap are classic hallmarks of Knapp-Monarch’s production line from this period. Cool patina, great display piece or decorations piece. Refer to photos for condition.