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Plate 148-X. Outlets for drawing off contents from ketles. Plate 49-X. Various size paddles.

Plate 148-X. Outlets for drawing off contents from ketles. Plate 49-X....

Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description

Plates 152-X and 153-X show how the mixing paddles may be lifted out of a kettle by a simple hinge.

Plates 152-X and 153-X show how the mixing paddles may be lifted out o...

Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description

[Plate 148-X = Outlets for drawing off contents from kettles. Plate 49-X = Different sizes of paddles for enameled kettles.]

[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.]

[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