de Zentis Museum of Art
1665 10 C/E-c''' Harpsichord 8'8' Giacomo Smithsonian
Ridolfi Institution
1666 10-15/16 A_{1}-f''' Harpsichord 8'8' Hieronymus Metropolitan
de Zentis Museum of Art
1682 10-7/8 C/E-c''' Harpsichord 8'8' Giacomo Rhode Island
Ridolfi School of
Design,
Providence
1683 8 C/E-c''' Polygonal 8' B. Obici Harding
virginal Museum,
Chicago
1690 10-13/16 C/E-c''' Harpsichord 8' Giovanni Smithsonian
Andrea Institution
Menegoni
1693 10-5/16 G_{1}-c''' Harpsichord 8'8' Anonymous Smithsonian
Institution
1694 9-7/8 C-c''' Harpsichord 8'8'4' Nicolaus Smithsonian
(minus C#) de Quoco Institution
9-3/4 C/E-a'' Clavicytherium 8'8' Anonymous Smithsonian
Institution
[b]10-3/8 C/E-c''' Clavicytherium 4' Anonymous Boston Museum
(Ottavina) of Fine Arts
11 C/E-c''' Polygonal 8' Anonymous Smithsonian
virginal Institution

[a] This length is approximate. It is double the length of the shortest
string on the instrument.

[b] In order to arrive at a meaningful average value for the string
lengths of the nontransposing group, it was necessary to double the
measured lengths of the pitch _C_ strings of the three instruments tuned
an octave higher.

-------+----------+---------
Figure | Negative | Catalog
| Number | Number
-------+----------+---------
1 | 56322 | 326,905
2 | 46792 | 303,544
3 | 49355A | 303,544
4 | 49355B | 303,544
5 | 49356A | 303,544
6 | 49356 | 303,54