Caption: Canadian Pacific G2u "Pacific" 2664 (a Lambton Yard assigned steam engine, possibly on the Trenton Pickup job) works CP's yard at Oshawa, crossing the diamond with the Oshawa Railway under the watchful eye the leverman in the adjacent interlocking tower. Note the overhead catenary for OR's electric operations. Built by CP's Angus Shops in June 1914, 2664 ended her days working out of Lambton Yard until the end of steam, and was scrapped at Angus in March 1961.

The Oshawa Railway was an electric railway owned by GTR/CN that served the town of Oshawa, and interchanged with both CN and CP. It played an important part serving the automotive industry, including northern GM plants in town (notably the GM Oshawa North Plant (truck plant)) that were accessed via streetrunning trackage through town. CP and CN both interchanged cars of automobile parts to the Oshawa Railway for forwarding to the GM plants and associated automotive industries it served. CN de-electrified the line in 1964 and the old Oshawa Railway electric "motors" were retired. CN's GMD SW units were the usual power until most of the "Oshawa Railway Spur" was abandoned in the 1990's. The current OR right-of-way is home to the Michael Starr Trail.

Original photographer unknown, Dan Dell'Unto collection negative (large-format scanned with a DSLR).