A-Portrait of Franz Kolb, by a German Artist of the Early Sixteenth Century, Possibly Conrad Faber. (Pinacoteca, Verona). A Portrait of Franz Kolb in Verona Museum
Attributed works:
B-Portrait of Christopher Amberger, by the Holzhausen Master (?Conrad Faber). (Royal Gallery, Brussels). A Portrait of Franz Kolb in Verona Museum