Here's another 99 with awfully similar 3point buttstock checkering. This rifle dates from 1945. It also has the side panels, which would make it fit the "fancy" checkering option, in my mind.

[Linked Image from savagefest.net]

“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