Jongen Freres Brevete 7mm Pinfire Revolver

Who can tell me about Jongen Freres ? A 7mm Pinfire with an interesting action to load by tipping up the barrel. It has no proof marks and the top is marked with possibly the previous owner’s name ? Also noted in 9mm Pinfire.
There is a simple safety that moves into the cylinder but does not seem to work.
The pistol will still fire but the cylinder can only move anti-clockwise. Odd.



Belgium made revolver …