Copy the permalink Swallow Type Subject Date 1370-1390 ItalyLombardyBergamoItalyParchmentDrawingManuscriptAnimalsSwallowAnimalsSwallowSwallow Artist Giovannino de' Grassi (and workshop)Media Drawing on Parchment Location Bergamo, Biblioteca Civica Angelo Mai, Cassaf. 1.21, fol. 17r Inventory Expand the inventory