On the Development and Distribution of Primitive Locks and Keys

by Augustus Henry Lane-Fox Pitt-Rivers

a. Handle. b. Bolt. c c. Slit for handle, a.

Figs. 4 and 5. Wooden bolt with pin fastening (supposed form).

Fig. 4. Front view.

Fig. 5. Transverse section on A B.

Figs. 6 to 8. Wooden single tumbler bolt (supposed form).

Fig. 6. Front view (open).

Fig. 7. Front view (closed).

Fig. 8. Transverse section on A B.

Figs. 9A to 11A. Wooden double tumbler lock from the Faroe Islands.

Fig. 9A. Front view.