The 25 pieces for recorder from Amadeus are from a larger Amadeus collection of 60 pieces, “Capricen, Fantasien und Anfangsstücke” for transverse flute.
As far as I know, they are all from the “Fantasies and Preludes” i.e. “Caprices and other pieces for the exercise of the flute” from the collection of Giedde. The very legible original can be found at IMSLP here: https://imslp.org/wiki/Fantasies_and_Preludes%2C_Giedde_I.45_(Quantz%2C_Johann_Joachim)
The caprice (capriccio) on page one is the first caprice in my Amadeus booklet for treble recorder.