Copy the permalink Cassaf. 1.21, fol. 23r. Donkey Type Artwork Date 1370-1390 BergamoItalyAnimalsDonkey Artist Giovannino de' Grassi (and workshop)Medium Drawing on Parchment Location Bergamo, Biblioteca Civica Angelo Mai, Cassaf. 1.21, fol. 23r Inventory Expand the inventory