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
SCHOPEN G.
It is probably a rifle of infantry since a system of rail of fixing of a bayonet is present on the barrel.
The photographs do not give a report on any civil or military marking, only the mark of manufacturer SCHOPEN G à Liege which was a manufacturer of weapons registered with the proof house of Liege of 1857 to 1864.
It deposited a patent in 1859 for a double system of needle rifle of safety taking care by the breech.
GG
Photos Littlegun