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Tafel 121-X. Säureeier oder Blashülle für große Anforderungen und hohe...
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Platte 28-X. Saures Ei oder Blashülle.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Plate 122-X. Acid egg. - An open book with a picture of a machine on i...
Public domain photograph of a machine part, motor, equipment, free to use, no copyright restrictions image - Picryl description