The First Lawnmower
The world's first lawnmower was produced during or very soon after 1830, designed by Budding and manufactured by Ferrabee. From early advertisements we see models were available: a 16" cutting width at £7 10s and a 22" model at £8.
None of the very earliest lawnmowers are known to exist. The machine pictured below was made by Ferrabee around 1840 but the original model would have been almost identical.