 Wornum established another factory, first at 3 Welbeck Street, and that year introduced a vertically strung "harmonic pianoforte" better known as the "cottage piano".In late 1813 Wilkinson leased a house at 32 Howland Street, and by 1816 he established a piano factory behind the house, as well as 315 Oxford Street and added showrooms at New Bond Street.This business continued at least through 1830, making at least cabinet upright pianos (praised by Pleyel in 1815) and grand pianos.