On the Development and Distribution of Primitive Locks and Keys

by Augustus Henry Lane-Fox Pitt-Rivers

Fig. 125. Key from Museum at Saint Germain ('La Ferronnerie').

Fig. 126. Modern English latchkey.

Fig. 127. Lock with complex wards, used in the Middle Ages.

Figs. 128 to 130. Modern tumbler lock found at Funtley, Hants, belonging to Mr. Chubb.

Fig. 128. Longitudinal section.

Fig. 129. End view and section.

Fig. 130. Top view of bolt.

Fig. 131. Barron's tumbler lock (Tomlinson 'On Locks and Keys').

Wyman & Sons, Printers, G^t. Queen S^t. London, W.C.