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Plate 145-X. Thermometer tubes.

Plate 145-X. Thermometer tubes.

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

Illustrating a sectional drawing of three of the Plate 122X acid eggs; the central flange ismade with asbestos packing.
Plate 102-X. Gas furnace for heating caldrons and kettles.

Plate 102-X. Gas furnace for heating caldrons and kettles.

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

[No. 12?]Pipe and fittings. Plate 146-X.

[No. 12?]Pipe and fittings. Plate 146-X.

Public domain reproduction of illuminated book page, free to use, no copyright restrictions image - Picryl description

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