This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Meyers sa. Building stones Tomettes Mauersteine Fig Ziegelpremaschine von Sachsenberg Fig Kasseler FlammZiegelofen Fig Grundri Fig Durchschnitt von Hoffmanns Ringofen Fig Walzenpremaschine von Jordan Fig Rhrenpresse von Jordan Fig Runder gewlbter Ofen von Parkes Durchschnitt Fig Claytons Ofen fr Steinkohlenfeuerung Grundri