The clean typography and illustrations from the era make them both visually appealing and rare. In good or mint condition, a Campbell’s soup sign from the 1950s can easily sell for close to $100.

The iconic American sign, marked Campbell Soup Company (Camden. N.J.), was 22 ½ inches by 12 ¾ inches and boasted excellent color and gloss. It sailed past its high estimate of $9,000.