California U.S. Highway 101
1958 specification guide sign shield. Manufactured in 1960.
Last known porcelain outline US shield (1958-1962 style) in California. US-101 southbound in Mountain View. The word BY-PASS is greened out, as the business loop (El Camino Real) was renumbered to state highway 82 in 1964, and now this is mainline 101.
Photo by Jake Bear, 5/18/2008.