This is cool. There is a guy here locally that has a GMC version of one of these. He's trying to sell it. Unfortunately it's very rough and his asking price is, shall we say, unrealistic.
Race Street (US 30) appears to be an appropriate name for this Philadelphia thoroughfare which joined the entrance to the Delaware River Bridge in the foreground of the photo. According to the source, the image was taken on September 7, 1950. The structure was later renamed the Benjamin Franklin Bridge in 1955. The entrance was also realigned and is now accessed from I-676 which crosses the center of Philadelphia from east to west and enters Camden, New Jersey on the east side of the bridge. Courtesy of The Old Motor http://theoldmotor.com/?p=172317