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This model is the Wells-Brimtoy Horse Box Truck in Green. This item is not friction driven. The company also produced friction driven toys of the same size (approximately 3.75 inches or 82mm long).
The model has a diecast plastic chassis with pressed metal rear body. It has been shaped with rudimentary representations of the body lines. There is no glazing. At the front is a cast representation of the grille. The rear body is lithograph printed to represent the rear box and has "windows" through which can be seen the horse and attendant. Below this is signage that reads "Horse Box" on both sides. The roof has lithographed roof vents.
The original black plastic wheels are still on the model, mounted on steel axles. The front and rear axles pass through the base.
The base plate is a single piece, pressed tin unit. It has been press fitted to the body and the plastic body pins melted to hold it to the body. It appears to be plated. There are no manufacturer's marks or country of origin details on this model.
I do not know exactly when this item was issued but believe it to be between the 1950s and 1960s.