The Leyland Retriever was introduced in 1939 and production ceased in 1943. The Leyland Hippo was not introduced until 1944 and ceased production in 1946. The Leyland Retriever WLW1 was fitted with several bodies (Not all on the same truck!!!) GS, Machinery, Breakdown, Workshop, Bridging, Gun Mounts, Wireless and Coles Crane. It had a four cylinder petrol engine, rated at 33.3 hp. somewhat underpowered............ but there aint many on the show scene, so I guess that it would be something of a show stopper if restored well............ good luck if you take it on.