Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 395
of Figure C represents the original drawing in Steinway & Sons patent for the overstrung scale, and the dispositionthe strings in the form of a fan. Secured by letters patent No. 26532, dated December 20, 1859. Figure D, … Figure D shows the overstrung scale (with bass strings spread over the others in fan-like shape) as used in uprightpianos in 1862, invented by Steinway & Sons, and imitated by nearly all European and American manufacturers. lO Description of Steinway & Sons Patented Inventions. No. 3—PATENT…
