The Italian organ is not made just for padre Davide da bergamo... :)
I must apologize for being very out of practice, but ... here is the Costa Serina organ struggling with Brahms.
Forte: Principale 8 bass and soprano, Flutta soprano 8, Viola bass and soprano 8, Flute 4 bass and soprano
Piano: Principale 8 bass, Flutta 8 soprano , Flute 4 bass and soprano
Pedal: Contrabbassi 16