The brass reinforcing pin is located for a blade cut. Man, that's one interesting stock.
Thats just it... There are TWO versions of the standard length alby replacement stocks.
1: Imported long ago in large amounts and also seen on some recent imported Banian guns.... what sealed the identity. These are the same in almost every way to a blade cut chinese stock having normal placement of cross pins, a potbelly fore end at the bayo area, and 1 hole butts. Tell/tell sign of them being alby made is they are Beech wood and have dif contours including a more square shape just forward of the wrist, dif angle of the puttplate, and often have that rear receiver overhang.
2: Seen in recent Banian batch rifles in higher quantities then other version. These started life destined to be long Alby stocks. They have two hole butts, and a non pottbelly fore end. At some point they received a cut down to standard length and were bayo cut for a blade.