IF it is just like it left the factory with ALL papers, boxes, etc., 1200 or so. IF the action has been cycled, 800. IF it's been shot, 650.
As far as I know Winchester did not keep records of the model 670 and 670 Magnum series rifles.I can say that the model 670 was made from 1967-1973.The model 670 rifle will bring between 140-300 dollars depending on overall condition,with 300 quoted as a perfect unfired rifle.
1973 American League Championship Series - 1973 was released on: USA: 6 October 1973
1973 National League Championship Series - 1973 Game 4 was released on: USA: 9 October 1973
1973 World Series - 1973 Game 5 1-5 was released on: USA: 18 October 1973
1973 World Series - 1973 Game 6 1-6 was released on: USA: 20 October 1973
1973 National League Championship Series - 1973 Game 1 was released on: USA: 6 October 1973
1973 National League Championship Series - 1973 Game 3 was released on: USA: 8 October 1973
1973 National League Championship Series - 1973 Game 5 was released on: USA: 10 October 1973
1973 World Series - 1973 Game 7 1-7 was released on: USA: 21 October 1973
The Exorcist series was created in 1973.
The price range varies from $1600-1800. http://www.usedprice.com/dropdown.php?catname=gun&mfrid=&typeid=223&itemid=&query=1975+Peacemaker+Centennial+.45