This negative did not come with any identifying information, but it is obviously from a February 12, 1939 fantrip where the fledgling Central Electric Railfans' Association chartered Chicago Rapid Transit Company "L" cars 4317 and 4401 and took them out on parts of the CA&E including the Mount Carmel branch. However, since that line used overhead wire, that's not where this picture was taken. Instead, it appears to be out near the end of the line at Mannheim and 22nd Street on the CRT's lightly used Westchester line, which was built in anticipation of housing being built in this area (which did not come about until the 1950s). South of Roosevelt Road, the line was single-track, which appears to be the case here. If not for the Great Depression, more housing would have been built here. We have previously run two other pictures from the same fantrip, both taken on the Mt. Carmel branch. The CTA substituted bus service for "L" on the Westchester line in 1951 as it did not want to continue paying rent to the CA&E, which had already announced its intentions to truncate passenger service to Forest Park, which meant similar rent payments to the CTA were about to cease.