De mineralibus et rebus metallicis libri quinque
A 1569 Latin treatise on minerals and metals by Albertus Magnus, printed by Birckmann & Baum, aimed at scholars and readers of natural philosophy and mining learning. The pictures are small, the first a red wax seal impression of a standing robed figure within an almond-shaped border, the second a woodcut vignette in an oval frame showing a figure with a hammer and a winged figure above, set against a rocky landscape. A designer might take from them the compact oval frame and the contrast between flat red seal forms and fine black line woodcut detail.
