|| These pile-driver models are in the Millington/Banard
Collection at the University Museum at the University of Mississippi in
Oxford. They were both bought by Prof. Frederick A. P. Barnard in the second-half
of the 1850s from the firm of Lerebours et Secretan of Paris.
The model at the left is 50 cm in height, and is listed in the 1853 L&S catalogue at 45 francs, or about $9.
The catalogue at the right is actually not listed as a pile driver, but as a hoist, and also cost 45 francs.
The Mississippi collection also had a model of a crane which is about the same size.