On the Development and Distribution of Primitive Locks and Keys

by Augustus Henry Lane-Fox Pitt-Rivers

Fig. 36C. Side view of modern padlock, from Paris, spiral spring action.

Fig. 37C. Side view of modern padlock, from Germany, with spiral spring action.

Fig. 38C. Longitudinal section of modern handcuff, from Wiltshire, with spiral spring action, unlocked by a revolving key.

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

PLATE VI.

Figs. 39C to 41C. Padlock, from Paris, probably 17th Century, spring lock, unlocked by a revolving key.

Fig. 39C. Front view.

Fig. 40C. Transverse section.

Fig. 41C. Longitudinal section.