I looked at my gun again and it is a side lever. I got an under lever also and mixed them up. I think me a 2 piper are talking about much the same gun. Could the C.S. Stamp on the under side barrel rib possibly be Clabrough and Sons? That would explain it looking better than a Belgian but still not a high grade gun. 2 piper does your gone have the C.S. between the chambers on the underside rib?