The Lister LD series has been made since the 1940s (?) up to the late 1960s, and possibly into the early 1970s. A particularly nice simple engine, it has been used from general farm and machine shop work, to driving pumps, generators, a small railway engine, and the Lister Autotruck. When part of a generator set they are known as "Start-O-Matic" engines.
