Historically Significant Collection of 48 Original Gelatin Silver Photographs of French West Africa, Focusing on the Construction and Completed Infrastructure of the Congo-Ocean Railway in French Congo – Mostly, in the Mayombe Hills, Showing Viaducts under Construction and Completed (106th, 108th, 117th, 128th, 136th and 137th km), Earthworks (119th and 120th km), Line Under Construction near Pointe-Noire and Brazzaville, Railway Station in Goma-Bielo, Foulakary River, Bouenza River Waterfalls, Alima River, Local School and Children, &c. Ca. 1930s.