history of coal mining, the bast colliery, near ashland, pennsylvania, usa , victorian, 1890s, vintage photograph 19th century. - 礦井 幅插畫檔、美工圖案、卡通及圖標歷史
coal mine showing two shafts, coal miners lift, and lift to transport coal to surface, diagram - 礦井 幅插畫檔、美工圖案、卡通及圖標
cross section illustration of shaft mining for gold in vertical tunnel with lift access to all levels - 礦井 幅插畫檔、美工圖案、卡通及圖標
gold mines and mining in wales, victorian 19th century, near dolgellau - 礦井 幅插畫檔、美工圖案、卡通及圖標威爾斯-英國, 英國
miners and mining tunnel, williams' creek, cariboo, british columbia, victorian, 19th century - 礦井 幅插畫檔、美工圖案、卡通及圖標加拿大, 金礦
history of mining, lifts and mechanism at mouth of a coal mine, vintage illustration, 1850s 19th century - 礦井 幅插畫檔、美工圖案、卡通及圖標
gold mine, shaft, miners, mining, klerksdorp, transvaal, victorian history, vintage photograph, 1890s, 19th century - 礦井 幅插畫檔、美工圖案、卡通及圖標非洲 - 地理位置
