Title: Square Piano
Object type: Square Piano
Date: ca. 1801–5
Culture: Austrian
Artist:  Caspar Katholnik (Katholnig) 
Artist bio: Austrian, Vienna 1763–1829 Vienna
Artist nationality: Austrian
Artist role: Maker
Medium: Mahogany veneered case, bone naturals, ebony slips over dark-stained accidentals.
Dimensions: Case length (perpendicular to keyboard) 36.6 cm, Width (parallel to keyboard) 106.0 cm, Case depth (wihtout lid) 15.5 cm, Total height 75.5 cm
Classification: Chordophone-Zither-struck-piano
Credit line: The Crosby Brown Collection of Musical Instruments, 1889
Geography:  Vienna   Austria      
Department: Musical Instruments
Repository: Metropolitan Museum of Art, New York, NY