Sources
Appendix I.4. Counterpoint sketch

Appendix I.4.B.1

1 double leaf (only written on 1 page), 4° (29 × 22 cm) with 10 staves, comprising 4 bars of music.
Puccini signed this sketch as “G.Puttani” and “G.Puccini”; in addition, he wrote the words: “adsum culo di Pungento [?]”, the meaning of which is not totally clear.Note: *“Puttana” means whore and “culo” is arse.