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<dl><dd>"I. und II. Vortrag : Die Erklärung und praktische Anwendung des polygraphischen Apparates."</dd>
<dd>Text illustrated with 30 specimen plates of the various 19th century commercial and experimental printing processes, including wood and steel engraving, etching, photography, lithography, nature printing (including examples showing nature-printing of minerals, here identified as "Mineralographie" and "Mineralotypie"), chemitype (zinc relief etching), hyalographie, anaglyptography (medal engraving), guilloche, electrotyping techniques (including "Galvanographie" and "Stilographie"), and typography (including printed and blind impressions)</dd></dl><br>Subjects: K.K. Hof- und Staatsdruckerei (Austria); Prints; Printing</div>
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Auer, Alois, 1813-1869</div>
Internet Archive identifier