Design for a Swordsmith's Sign, by Hans Holbein the Younger

Design for a Swordsmith's Sign, chiaroscuro drawing. Pen and ink and brush, grey wash, white heightening, 24.6 × 15.3 cm, Kunstmuseum Basel.
The coat of arms of the swordsmiths of Basel shows a Swiss dagger between swords crossed through a crown. The handles of combat weapons and hunting knives above the rectangular field may advertise the goods of the master (Müller, 212).