Title: Engaged cassetta frame on a polyptych panel
Object type: Frame
Date: ca. 1380
Culture: Sienese
Artist:  Siena 
Artist nationality: Siena
Artist role: Artist
Medium: Poplar. Mitered. Gilt; brown-orange bole.
Dimensions: Overall: 20 1/16 × 13 in. (50.9 × 33 cm)
Sight: 17 1/2 × 10 1/2 in. (44.5 × 26.7 cm)
Classification: Frames
Credit line: Robert Lehman Collection, 1975
Department: Robert Lehman Collection
Repository: Metropolitan Museum of Art, New York, NY