vintage african lake stilt house engraving – antique mohrya lake dwelling illustration - 乍得湖 幅插畫檔、美工圖案、卡通及圖標
cameroon map, german colonization, wood engraving, published in 1899 - 乍得湖 幅插畫檔、美工圖案、卡通及圖標非洲 - 地理位置, 殖民地主義, 德國