Casgliadau Arlein

Interior of the Gurnos tinplate works, showing the empty interior of hot mills looking borth noth west. Mill furnaces were located at right (east), part of roll change gantry visible on left, plenum cold air pipes each have two branches left (west) for millmen and right (east) for furnacemen. Narrow gauge rail tracks set into floor at right foreground for roll trolleys and bars/sheets.