For more detailed information on engine manufacturing dates click:

Putting a date on your Mamod/1

Putting a date on your Mamod/2

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*There was no production from 1940-1945 because of World War Two.

**This account was put together with reference to Steve Malins book - 'The Story of Malins Models' (1996) as well as the webmasters own comprehensive collection of engines, memorabilia and knowledge on the subject.