Obsidio Clari Montis Cze̜stochoviensis : deiparae imagine a divo Luca depictae in regno Poloniae celeberrimi, ab exercitu Suecorum duce Burchardo Mellero generali legato
A 1659 Latin account of the Swedish siege of Częstochowa's Jasna Góra monastery, printed at Gdańsk by Georgius Förster and written by Stanisław Kobierzycki with illustrations attributed to Christoffel van Sichem. The pictures are woodcut-style decorations: an initial letter with a small scene inset, a foliate cartouche with putti, a shining heart-shaped emblem flanked by angels bearing the Hebrew name of God, and an ornamental capital R with interlace and scrollwork that a designer could borrow for period display lettering.
