Hi Mich, Give it a measure across. Looks to me like a 19" base.
They were fitted to several models dating back to 1965. Most of the later ones had a Briggs, earlier ones in the 60's were common with kirbys.
Super 4, Rapid, Tiller mower for a few.
Looks to have had the later shape badge, but with the earlier style tyres (ribbed not studs). Looks to have the wrong handlebars on it, and does have the cover for the belt cutout. Would be a perfect donor for a restoration
