This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Oil painting Radio Warning located on second floor rotunda ceiling U.S. Custom House Philadelphia Pennsylvania LCCN.tif photograph digital file color Notes Carol Highsmith DLC Photographed as part of an assignment for the General Services Administration Title information date and subject note provided by the photographer Credit