Probably late 1925, it'd be stamped "SAVAGE MODEL 1899" on the receiver - but it's actually a Model 99. They just didn't change the stamps for 6 years since the name change was mostly driven by marketing.
“
The Savage 99 Pocket Reference”.
All models and variations of 1895’s, 1899’s and 99’s covered.
Also dates, checkering, engraving.. Find at
www.savagelevers.com
