Minnesota Interstate 35
1961 specification guide sign shield. Manufactured between 1971 and 1973.
Duluth. This sign dates back to the opening of the I-35 viaduct.
Photo by Jake Bear, 10/25/2009.
1961 specification guide sign shield. Manufactured between 1971 and 1973.
Duluth. This sign dates back to the opening of the I-35 viaduct.
Photo by Jake Bear, 10/25/2009.