Gemeinfassliche Darstellung der Stabeisen- und Rohstahl-Bereitung in den Ländern des Vereins zur Beförderung und Unterstützung der Industrie und Gewerbe in Innerösterreich, dem Lande ob der Enns und Salzburg : I. Heft. Die Bestimmung der verschiedenen Arten des Roheisens, des Brennmaterials, des Stabeisens und des Rohstahls
Gemeinfassliche Darstellung is a popular technical treatise by Peter Tunner, published in 1845 by Carl Tanzer, explaining iron and steel production in the Austrian crown lands for ironworkers and industrial readers. The first of the two pictures is a purple ink library-style seal reading Georg Fischer Schaffhausen Villa Berg, which is a scan mark rather than book content, while the second is a plate of three vertical furnace or converter chambers labelled with letters B, c, d, and a, set in hatched masonry with a flue across the top, offering a crisp hatched-section diagram a designer could adapt for schematic linework.
