Pre 64 06 barrel.
Value, IDK. I guess it would depend on how bad someone wanted it.
As my 81 yo dad would say, "it's worth what someone is willing to pay for it".

Indexing it to an action would almost certainly require some whittlin' on it or the face of the action.


"Aim right, squeeze light"
" Might as well hit what you're aiming at, it kicks the same whether you miss or not"
NRA Life, GOA