Du Pont, Edmond, 1906-1996 (former owner), The Royal Studio (Wilmington, Del.) (photographer)
Identified in photograph left to right: empty keg storehouse and packing house, sizing reel here, elevator which carries powder from glazer to sizing reel, polishing glazer, smoothing glazer, second 10 in. drier, first 10 in. drier, 36 in. drier, grainer engine house, runway for empty kegs, boiler house.