I’ve looked through my photos and cannot see anything similar from the big manufacturers (but might be wrong) such as Ransomes, Mountfield, Victa etc and the ones you have also mentioned.
I can see why you thought of and dismissed Norlett as some models had the sticking-out wheel supports at the front as shown on the attached 1976 image.
Do the handlebars have any distinguishing features? Are they one or two-piece or foldup?
