It’s a Ginge (pronounced Gingah) came in two widths and had a plastic grass collector under the handlebars. Not many collectors have survived as they were prone to uv deterioration, brittleness and disintegration! I’ve got one minus collector that my Dad bought around 1960 and the local Antiques Centre (junk shop) had a complete one a couple of months ago – I resisted the temptation!
At present they have a Webb Witch with high cut side wheels and no front roller. Never seen a roller driven Webb push mower with high cut wheels but they look original and not a diy adaptation.