Belgian open frame 7mm pinfire revolver.
6 chamber cylinder, folding trigger, 3.5 inch barrel
Double action, not proofed.
This revolver has a smooth barrel!
The spring over the ejector rod is probably not original.
Batch number on barrel (L) and cylinder (R).
Batch number on frame (L) and trigger (R)
Unidentified mark on cylinder (L) and smooth bore barrel (R).
Unknown punch.