Tesserae gentilitiae
Tesserae gentilitiae is a 1638 Roman heraldry book by Silvestro Pietrasanta, engraved by Mathieu Greuter and Giovanni Francesco Romanelli, aimed at scholars and designers of coats of arms. Its plates show single shields of arms drawn in engraved line, with bends, bars, and charges such as fleurs-de-lis, eagles, and lozenges set in hatched fields that suggest tincture without colour, useful for graphic designers studying heraldic patterning and shield silhouettes.
