It sounds like a 1950's 99R. Is it drilled and tapped on top of the receiver for scope bases?

1950's 99RS (the Redfield 70LH peep was the add-on for the 99RS):

[Linked Image from live.staticflickr.com]

“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