Two Wings of an Altarpiece depicting Saints John the Baptist and Catherine in Niches Surmounted by Angels
1515 · Pen and brown ink, gray wash, squared with black chalk or graphite; framing line in pen and brown ink, by the artist; on two separate pieces of paper, later laid down
Sheet: 8 1/16 × 6 7/16 in. (20.4 × 16.3 cm)
The Metropolitan Museum of Art