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Plate 148-X. Outlets for drawing off contents from ketles. Plate 49-X....
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Plates 152-X and 153-X show how the mixing paddles may be lifted out o...
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[Plate 148-X = Outlets for drawing off contents from kettles. Plate 49...
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
[Plate 149-X. Acid enameled paddles.]
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description