Italian Paintings of the Thirteenth and Fourteenth Centuries: The Angel of the Annunciation, c. 1330 | National Gallery of Art https://www.nga.gov/research/publications/italian-paintings-thirteenth-and-fourteenth-centuries-0/italian-paintings-thirteenth-and-fourteenth-centuries-angel-annunciation-c-1330
workshop product, detecting in it “un notevole scarto di qualità rispetto alle opere