Not sure the exact date, but a 1967 M-70 should have the second version of the reverse checkered stock (1964 and 1965 M70's have the first variation as seen in Win-poors photo). The second variation came out in 1966, has a different impressed checkering pattern, shiny finish, and a Red "W" pistol grip cap (cap identical to the first variation). The third variation has the same checkering pattern as the second variation, a flat finish, and a little scroll work in the pistol grip cap. These are the standard stock finishes, there were also two variations of the Deluxe stock.
Ps. Longshot, You will enjoy owning a 225 WIN in an early Post-64 M70 - all the early pushfeed's I have owned have been shooters (I'm down to my last one now, a 1966 225 WIN). My understanding is that Winchester Ammunition classifies 225 WIN as "obsolescent" and runs it infrequently. I bought cases from Huntington's several years ago - when they are available get yourself 300 and you will be set for a lot of shooting.
Last edited by Odessa; 12/21/14.
