Another of Rays 'planning days' here as a good covering of snow persists and rules out any sensible work in the gardens.
I have spotted a fairly (ish) interesting machine on eBay - headed Ransomes lawnmower vintage - item number 281054209861 , sorry I haven't worked out how to add a direct link. Anyway it's allegedly a Ransomes Ladybird and looks like an Atlas or earlier Ajax with an electric motor.
I don't remember seeing one before and I'm wondering if it's a conversion kit added on later rather than a factory original. Someone I'm sure will know the answer. It all looks delightfully lethal but quite an interesting thing I thought.
I would also strongly recommend a look at these videos that Keith has recently added; material there I've not seen before,and for those who knew him it was great to see David Lumsden in his heyday.