This boxwood alto recorder is a copy of one of the instruments by J.H. Rottenburgh (1672 - 1765) in the Musical Instrument Museum in Brussels. It is tuned to the
original pitch (410 Hz) with the original Hotteterre fingerings.
This recorder can also be made at 415 Hz with normal baroque fingerings and double holes.
You can listen to this instrument here:
Michel Blavet : L'Insinuante (1732)
Robert Carr : An Italian Ground
(The Delightful Companion, 1686)