- Bb Tenor Serial # ? (very late model)
- Couesnon - Monopole - Bb Soprano (straight) - sn 14472 - Silver Plate - Nicolas Trefeil
- Couesnon - Monopole - Eb Alto - sn 13038 - Silver - lillovelo @ eBay
- Couesnon - Monopole - Low A Eb Alto - sn Unknown - Silver
- Couesnon - Monopole - Low A Eb Alto - sn unknown - Silver
- Eb Alto - sn 8495 - Lacquer