Bored Stones from Sierra Leone (West Africa)
Photo taken in 1968 at the Sierra Leone Museum, Freetown. Scale in centimetres.
From ethnographic analogy, these were probably used locally as digging stick weights, possibly in mining activities; elsewhere, they have been used in agricultural and food gathering activities.
Short discussions of bored stones in West Africa can be found in the following:
R. Schnell, PLANTES ALIMENTAIRES ET VIE AGRICOLE DE L'AFRIQUE NOIRE: Essai de phytogógraphie alimentaire, pp. 45-46. (Larose, Paris, 1957) There is even a photograph of them being used (opposite page 176).
Oliver Davies, THE QUATERNARY IN THE COASTLANDS OF GUINEA (Glasgow, 1964), pp. 196 -199.
Oliver Davies, WEST AFRICA BEFORE THE EUROPEANS (London, 1967), p. 203
John H. Atherton, "Speculations on Functions of Some Prehistoric Archaeological Materials from Sierra Leone," In B. K. Swartz, Jr. and Raymond A Dumett, editors, WEST AFRICAN CULTURAL DYNAMICS (The Hague, 1980), pp. 266 - 270)