Camco (Canadian Appliance Manufacturing Company) was incorporated in 1977, and became the largest Canadian manufacturer, marketer, exporter, and service provider of home appliances. The company's brands included GE, Hotpoint, Moffat and McClary. Camco also produced and serviced private brands for major Canadian department stores. The Camco West plant, built in 1913, was formerly owned and operated by Westinghouse, and was served by CP Rail.
During a 1981 visit to Bayview Junction, this Hamilton-bound CP run-through train behind CP 5909-5908 at dusk (around 2000 hours on an overcast June 22) had CP 41021 in the consist, sandwiched between script covered gondola and covered hopper:
These cars were a response to the cube out vs. tare out business model. If a lightweight product is being shipped, a lot of air is taking up space in the car. Think of woodchips - a big enough car could never be designed to haul the maximum capacity of woodchips due to their light weight. What's inside a clothes dryer or washing machine? Air! Same with a refrigerator, once the compressor, motor, wiring et al is taken into account. So, if we cannot make a heavier cargo, let's build a bigger box to put it in! CP 41012-41011 at Bayview Junction in 1987 (online auction site photo). Note "No Running Board/Excess Height Car" lettering in white-painted patch at end of car: