The following websites can be used to precisely identify most 1950s-1970s Hillman cars :
      Chassis Numbers for Series Minx & Husky
      Chassis Numbers for Rootes Passenger Cars
      Locating the engine & chassis numbers on your Audax bodied car.
      1966 Rootes Vehicle Identification Schedule  –  chassis numbers & manual numbers

Follow these links to see mug shots of the respective models :

1932-1935 Hillman Minx models

The entire 1935 Hillman catalogue

The entire 1936 Hillman catalogue

1936-1937 Hillman Minx

1938-1939 Hillman Minx

1940 Hillman Minx Saloon

1946 Hillman Minx Saloon & Convertible Coupe and Hillman "Ten" Estate Car
(model later designated by Rootes as "Mark I")

1948 Hillman Minx Saloon & Convertible Coupe
(model later designated by Rootes as "Mark II")

Hillman Minx Mark III & IV – Saloon, Convertible Coupe and Estate Car

Commer Mark IV "Light Pick-up" (Utility)

Hillman Minx Mark V – Saloon, Convertible Coupe and Estate Car

Hillman Minx Mark VI – Saloon, Convertible Coupe and Californian

Hillman Minx Mark VII – Saloon, Convertible Coupe, Californian and Estate Car

Hillman Minx Mark VIII – Saloon, Convertible Coupe, Californian and Estate Car

Hillman Husky Mark I (1954 – 1957)

Hillman and Commer Mark VIII "Light Pick-up" (Utility)

Hillman Minx Series I

Hillman Minx Series II – Saloon, Convertible and Estate Car

Hillman Husky Series I (1958 – 1959)

Hillman Minx Series III – Saloon, Convertible and Estate Car

Hillman Husky Series II (1960 – 1962)

Hillman Minx Series IIIA to IIIC

Minx Series IV – why wasn't there one?

Hillman Minx Series V & VI and Hillman Gazelle

Hillman Husky Series III (1963 – 1965)