Probably a Qualcast 2 stroke hedge trimmer?
I've had this old 2 stroke engine in Qualcast red for many decades, I wasn't aware of Qualcast going into that side of the garden business?
Engine for a Suffolk Pony cylinder mower.
Thanks for replying Clive 1962, I don't believe I've heard of a "pony" mower, I must try googling that.
I actually typed "Pony" into the search engine here and I found the parts book, a photo of the whole machine, thanks again all.
A lovely pic. thanks.