"Croisiere Noire" bookends

Africanist metal sculpture bookends commemorating french "Croisière Noire" organised in 1924 - 1925 by Citroen car company.
French. Circa 1926.

This sculpture is the Symbol of the expedition. Please see pictures below. (Movie Poster for the documentary film)
(The Citroen expeditions in Asia (Croisière Jaune) and Africa (Croisière Noire), intended to demonstrate the potential for motor vehicles equipped with the Kégresse track system to cross inhospitable regions. The expeditions conveyed scientists and journalists and were a publicity success.)