A product of Ransomes, this was a powered roller mower for the professional market in the 1950s. One 24 inch Mk.4 bears the serial no.BL319 and the provisional patent no.30494/54. By the 1961/2 season the "Meteor-Four" with its 150cc 4-str. J.A.P. engine was being sold in two widths (20 & 24 inch) at £117 and £130 respectively, plus Purchase Tax.