You will see a lot of Wm Moore side lever doubles and a lot of Belgian made side lever guns under a lot of names. A few high grade British makers had side lever guns like Grant. The Wm Moore doubles tended to have a more flat rear profile than this gun but that might just be the angle. Do consider back in this time frame Belgian doubles were very common and not thought of as a much to be avoided gun. Black Powder might have shot them loose but few people shot more than a few hundred shells a year, and all at game. Great picture by the way.
