The class 10 differed from the more common class 08 in their Lister Blackstone engines. D4067 was built at Darlington in 1961 and like the rest of the class 10s, it spent its life with British Railways in South Yorkshire. Being non standard, it was withdrawn as surplus after less than ten years service, and sold to the National Coal Board who sent it to Betteshanger Colliery, Kent in March 1971. The NCB transferred it via Doncaster Works to Nailstone Colliery, near Coalville in early 1976 and it was withdrawn from there in March 1979. It was transferred to Loughborough on the 5th February 1980 and has been restored almost single handed by the owner. In preservation, the engine has been used almost exclusively at Loughborough, shunting both the yard and station. As it is fitted with continuous brakes it is capable of pulling passenger trains, the first trip to Rothley was on the 17.15 train on May 3rd 1986. Another passenger outing was on August 5th 1989 when it was named Alfred Thomas Margaret Ethel Naylor after the owner's parents. Being a reliable performer, and a little faster than the class 08 engines, D4067 makes the odd trip to Quorn, Swithland or Rothley to transfer stock.