That type of splinter forend release is called a keyed forend latch. Tap on the smaller end of the key. it will not completely come out so don't force it but will come out far enough to remove the forend, then lift the forend from the barrels. Then release the lifter plunger and the barrels will rotate down and off the frame. The numbers and letters on the barrel flats and the water table of the frame is what will give most of the information on the gun.
The butt plate is a simple solid steel butt plate, not a skeleton steel or dog's head hard rubber butt plate.
.
__________________
"I'm a Setter man.
Not because I think they're better than the other breeds,
but because I'm a romantic - stuck on tradition - and to me, a Setter just "belongs" in the grouse picture."
George King, "That's Ruff", 2010 - a timeless classic.
|