Some of the most beautiful work of this craftsman, and many others, are in this book “Liège Gunmakers through their Work. 1800 - 1950”.
For more detail see: LIEGE GUNMAKERS
Chamelot Delvigne
Model says “the left-handed” because the barrel turns left and that the loading gate is on the left of the weapon.
Probably manufactured by the Belgian craftsman Emile Lepage (crowned EL).
Alain