Following last year's highly popular souvenir sheet featuring historic Canadian cars, in 1994, Canada Post Corporation presents Public Service Vehicles. These specialty streetcars, wagons, trucks and buses provided public transportation, and assisted in the maintenance of roads and in the provision of essential services. During the Second World War, Canada produced over 850,000 military vehicles for the Allied war effort. The design and mass production was initially coordinated by the Canadian Army Engineering Design Branch following British War Office specifications. However, major car manufacturers like Ford, General Motors and Chrysler ceased commercial production and retooled their plants solely for military use. Coordinated designs utilized as many interchangeable parts as possible. A Three-Ton truck chassis could carry a dozen bodies including Stores, Wrecker, Petrol Tanker, or Ambulance, made by different body builders.