Elevator (below)
Fig. 2.23 Elevator (below)
John H. Lovejoy. Woodcuts. Masthead: 2&4/16 x 7&4/16 in (5.72 x 18.42 cm); Archimedian Screw: 2&10/16 x 4 in (6.67 x 10.16 cm). Vol. 1, no. 5 (December 18, 1841), p. 1. The Public Library of Cincinnati and Hamilton County.