Hello Mucker.
If you look up tecumseh engine on ebay theirs a Landmaster 85 with an Tecumseh engine, See if this engine resembles your engine in any way.
Thanks for the reply Owen and the advice. I meant to photograph it today but I ended up repairing my shed roof down my allotment. (don’t want the Landmaster getting wet)!! I will post photo tomorrow evening. I’ve been looking at Tecumseh engines but couldn’t work out the matching ones with mine.