Trio No. 3 for flutes or other equal instruments

The following editorial note is taken from the above published edition (1960):-

"Constanzo (c. 1800) is unknown to music historians. Even his first name has been lost.
The only works surviving are the four trios for transverse flute, the only known set of which is owned by the editor - E.A.Wienandt (Chairman of Graduate Studies, School of Music, Baylor University, Waco, Texas)."