Title: Pianoforte Guittar (Keyed cittern/English guittar)
Object type: Pianoforte Guittar (Keyed cittern/English guittar)
Date: 1783–89
Culture: British
Artist:  Christian Claus 
Artist bio: German, active London ca. 1783–1793 New York
Artist nationality: German
Artist role: Maker
Medium: Wood and various materials
Dimensions: Total length  71.4 cm., Fingerboard width  22.7 cm., Fingerboard width--top/bottom  4.7/6.0 cm.,
Body length  40.5 cm.
Body width--widest/narrowest  30/- 
Body depth--neck/foot  6.5/8.5 cm.
Vibrating length of strings  44 cm., Bridge height  2.5 cm.
Classification: Chordophone-Lute-plucked-fretted
Credit line: The Crosby Brown Collection of Musical Instruments, 1889
Geography:  London England  United Kingdom      
Department: Musical Instruments
Repository: Metropolitan Museum of Art, New York, NY