Just like the title states. What are the numbers that are handwritten inside both the right and left insides of the grips/stocks?
I recently bought a set of Goncalo Alves, smooth Target stocks for my 640-2, which give the gun a musch better feel, and they are factory made. Just curious as to the numbers written inside.
I have seen many sets of S&W stock sets wit hthese markings, but never asked why?
Can anyone shed a little light?