Bemerkungen und Versuche über das Eisen
A German treatise on iron published in 1799 by the Schulbuchhandlung, written by Wilhelm Albrecht Tiemann with a contribution credited to von Praun, held by the Eisenbibliothek Schlatt. The single picture is a reproduction of a red wax seal impression, a pointed oval with a standing robed figure and a ring of lettering around its edge. A designer might take from it the bold red-and-dark oval shape and the ring of inscribed lettering as a graphic motif for an emblem or stamp.
