Directions for managing the iron-plow, and ventilator (or fanners,) made at Robert Bull's new smith and wright-work manufactory, foot of Leith-walk..
Bull, Robert.
[Edinburgh? : s.n.,
175-?]
Caption title.
Bull's "manufactory" was located in Leith (Scotland).
ESTC
Agricultural implement industry
Agricultural innovations
Iron industry and trade
Also available on microfilm. New Haven, Conn. : Research Publications, [1974]. Goldsmiths'-Kress library of economic literature ; no. 9336.2.