Grundlinien der Eisenhüttenkunde
Grundlinien der Eisenhüttenkunde is an 1801 German treatise on iron smelting by Traugott Lebrecht Hasse, held by the Eisenbibliothek Schlatt, and written for metallurgists and ironworks practitioners. Its single picture is a red wax seal impression of a standing robed figure within a pointed oval border, with lettering around the rim, which a designer could draw on for heraldic or seal-style emblem shapes and worn, textured red seal forms.
