Corgi Cargoes , with the exception of the transport box for the Massey Ferguson tractor, were all made in standard sizes to fit the load beds of Corgi commercial vehicles - in particular the Commer & ERF lorries, both flatbed and dropside variants and the two four-wheel trailers; numbers 100 and 102. Of course all the flat bodies shared the same casting and all the dropsides shared another casting which enabled the development of this range which added heaps to the play value.
I saved up my own pocket money and bought a plank load back in the 60s which I know is lurking in my garage somewhere.
