Original model c. 1841; this cast n.d.
Original model n.d., first edition c. 1845; this cast before 1876
Original model c. 1841; this cast possibly 1838-1850
Original model c. 1841; this cast 1876-1909
original model 1836; this cast possibly 1895
original model 1836; this cast possibly 1895
Original model 1836; this cast possibly 1895
Original model n.d., first edition 1857; this cast n.d.
Original model n.d., first edition 1857; this cast n.d.
Original model n.d., first edition c. 1845; this cast n.d.