Caption: The bright yellow Sperry Rail Service rail inspection cars were always a camera treat, and on Tuesday 1982-03-16, SRS 123 was no exception as it slowly and steadily tested westward on the North track of CP’s Cascade sub. at mileage 119.2, past the Allied Chemicals (now Chemtrade Solutions) plant on the south shore of Burrard Inlet between Port Moody and Vancouver.