The grandest British carriage and coachbuilders called themselves "houses," and Windovers, though not one of the truly early makers, certainly counts as a grand house‚ with two showrooms in London and branches in Paris, Bombay, and Sydney (Australia) and works in Manchester, Huntingdon and north London. By the late 19th century, they held many royal warrants and maintained some royal carriages until the late 1950s.
This ad (believed to be circa 1919) displays Windovers offering this vehicle with "STATION OR SHOOTING BRAKE" options.