This vehicle paper model is a Express Horse Box, based on the die cast model introduced by Dinky toys in 1952, the papercraft created by paperdiorama.com. The scale of the paper model is in 1:48. The real-world horse boxes were introduced in 1945, the bodywork built by Harrington on a Maudslay Marathon II bus chassis. Initially was used by the Southern Railways, then passed into British Railways ownership at nationalisation in 1948.
You can download the papercraft model here: Dinky Toys - Express Horse Box Free Paper Paper Model Download