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furnace doors

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Plate 50-X = Brick setting for caldrons and kettles. Plate 51-X = Furnace doors. Plate 52-X = Grate bars.

Plate 50-X = Brick setting for caldrons and kettles. Plate 51-X = Furn...

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

Plate 50-X. Brick setting for caldrons and kettles ; Plate 52-X. Grate bars. Plate 50 and 51-X. Furnace doors.

Plate 50-X. Brick setting for caldrons and kettles ; Plate 52-X. Grate...

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