The executive director of the Glenville neighborhood's development corporation, Tracey Kirksey, tells The Plain Dealer newspaper the undamaged marker was left outside a fire station and found by police Monday morning.
The marker honors Superman creators Jerry Siegel and Joe Shuster. A saw was used to remove the aluminum plaque from atop a pole last month.
Kirksey suspects thieves thought it was bronze and planned to sell it as scrap metal. She says it'll be stored until it can be remounted.
The city installed the plaque eight years ago, on the 65th anniversary of the 1938 release of "Action Comics" No. 1, in which Superman made his debut.
