The complete manuscript sources from the British Library (comprising almost all of Dragonetti's known works) are currently available on this page while we figure out the best way to index them.
"D" numbers for works are sometimes cited as catalogue numbers, but they actually appear to be plate numbers of publications from the conservatory of Vicenza, most of which were edited by Claudio Martignon (VIAF, WorldCat). The "D." prefix pertains to all composers with a surname beginning on D, not just Dragonetti. Please do not use them as catalogue numbers.