In Bill Wests book, Savage and Stevens Arms and history , on page 7-11 bottom of the page they list , 1915, no. 17-20 & 27-29 "favorite", 1915- 1917. This rifle was made from 1915 thru 1917 and on the rifle frame is stamped"model 1915" im thinking this was the rifle that was included in the model 425 series as far as production numbers. MAYBE!! smile Don