Spon, Ernest, Haldane, Robert, Lock, Charles G. Warnford (Charles George Warnford), 1853-1909 · London ; New York : E. & F.N. Spon · leaf 443
lock, which is entirely auto- The smaller size of plates may also matic in its action, being opened and closed in the act of exposing the plate. readily be exposed by inserting an extra It consists of a tongue of spring brass Fig. 2i0. attached to the under side of the cover 6, which enters a pin… … Fig. 241. At the left-hand side is a hinged door (', through which the plate holder is carrier made of tintype, the plate being held in the middle of the field. This inserted. In the cut a plate holder is shown method of holding small plates was de- partially in the case. In the dark si;4ned by S.…
Workshop recipes · Technology · Industrial arts
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
