Extended Compass (80 note) 6 1/2-Octave
Viennese Fortepiano by R. J. Regier


CC - g'''' compass.
Bone natural keys, ebony-capped sharps.
a'=430 c.p.s. pitch
Case and lid veneered of American black walnut or mahogany.
White ash and Douglas fir frame.
Keyboard shift, bassoon, moderator, and damper pedals.
Alternative pedal function and order can be arranged.
Standard leg length: 22 1/2" including bronze casters.
Maintenance kit and regulation batten.
Weight: 410 lbs.
Dimensions (legs detached): 95" x 49" x 13"
Design basis: fortepianos by Conrad Graf, c. 1830 and later (Smithsonian Institution, others owned privately), and Ignaz Bösendorfer, c. 1828 (Yale University).