
This image is from the AIGA symbol signs collection which was produced through a collaboration between AIGA and the U.S. Department of Transportation(DOT) in 1974 and 1979. All images in the collection are public domain.
This image is from the AIGA symbol signs collection which was produced through a collaboration between AIGA and the U.S. Department of Transportation(DOT) in 1974 and 1979. All images in the collection are public domain.