Diaeta literatorum ...
A 1674 printed scholarly guide by Johannes Rottenberger, published by Krebs in Jena and held by the Wellcome Library, apparently a regimen for students and learned readers. Its two pictures are decorative woodcut initial letters set into the text: a large Q enclosing a flowering plant with leafy stems and blossoms at the corners, and a D filled with dense interlaced foliage and scrolling acanthus-like leaves. A designer could draw on their framed letterforms, botanical line work and fine hatching for historical ornament.
