On the Development and Distribution of Primitive Locks and Keys

by Augustus Henry Lane-Fox Pitt-Rivers

Fig. 23A. Front view.

Fig. 24A. Longitudinal section.

Fig. 25A. Transverse section on A B.

Figs. 26A to 28A. Wooden tumbler lock made by negroes of Jamaica (Museum, Kew Gardens).

Fig. 26A. Front view.

Fig. 27A. Longitudinal section.

Fig. 28A. Transverse section on A B.

Figs. 29A to 31A. Wooden tumbler lock from British Guiana (Christy Collection).

Fig. 29A. Front view.

Fig. 30A. Longitudinal section.