Wolfgang, the 99EG was introduced in 1935 as an uncheckered model. Around 1938 they started checkering the stock and the model continued to be produced in high numbers until 1959. The sling studs on your rifle were added after it left the factory, and it was drilled and tapped for the scope after it left the factory.

Definitely an interesting setup! What's that scope?

Welcome to the campfire!

“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