Caption:
Portrait of Johann Froben, c. 1460-1527. Famous printer, publisher and learned Renaissance humanist in Basel. Iohannes Frobenus, Typographorum Omnium Aevi Sui Princeps. 1527. Copperplate engraving by Bartholomaus Hubner after a portrait by Hans Holbein in Christian von Mechel's Oeuvre de Jean Holbein, Chez Guillaume Haas, Basel, 1790.