As has been said, Leoncavallo recorded five rolls for Welte. Actually,
he probably recorded six. 1021 wasn't issued but it sits in the middle
of his rolls and Welte numbered their material in recording order.

I checked and the Musical Museum at Brentford has all five of these
titles in T100 format, as well as 1025 in T98 format. I have 1022 in
T98 format. Hardly surprising -- I expect they sold well.

1020 Bajazzo (I pagliacci) - Intermezzo
1022 Medici, The: Act I, Prelude
1023 Boheme, La: Waltz & Musette
1024 Romance
1025 Au Bord du Lac, Reverie

Julian Dyer
Wokingham, Berkshire, UK
http://www.pianorolls.co.uk/