Wabash Railroad F7A units 1163 and 1163A, 1951 products of General Motors Diesel of Canada, rest at an unidentified southern Ontario location, probably Windsor, in the 1950s. The units were apparently later renumbered to 673-674 and then became Norfolk & Western 3673-3674. Tom Rock of T.D.R. Productions provided the image by an unidentified photographer.