Caspar Katholnik (Katholnig); Square Piano; Austrian; Caspar Katholnik (Katholnig) (Austrian; Vienna 1763-1829 Vienna); ca. 1801-5; Vienna; Austria; Austrian; Mahogany veneered case; bone naturals; ebony slips over dark-stained accidentals.; 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; 3-octave span 46.6 cm; String length: longest 94.0 cm; shortest 8.7 cm; c2 30.2; Chordophone-Zither-struck-piano