https://www.wvhistoryonview.org/catalog/002762https://www.wvhistoryonview.org/image/002762.jpgCoal on Conveyor at Thomas, W. Va. Altwater & Bro PhotographersCoal Mines and Mining--Mine Interiors--Machinery.Coal-handling machinery.Coal mines and mining--West Virginia--Thomas.Conveying machinery.'Loading [sic] from heading to face conveying on 9% grade to boom, coal wet; distance to face 174 feet; flight type boom; Note: up until the time of taking pictures A-1-A-2-3&4 no jacks were set to support conveyor or drive.'West Virginia History OnView