Czech built mauser 98, the VZ 24. 7.92x57mm (8mm Mauser, 8x57, etc)
Lever on bolt says Buehler.
The "lever" on the bolt is the safety. Buehler is an aftermarket company who made scope safeties, scope mounts and some other parts. High quality parts. Not sure if they are still in business or not.
Since your rifle has had the safety replaced, its not as desirable to a collector (they want everything original). Current market value is probably $150-250 (for some reason shops selling them seem to think they are worth more
).
Asking price on these old milsuplus rifles has jumped a lot in recent years, dealers are asking a lot for beat up old rifles that weren't worth nearly that much just a few years ago. I got mine (and in really good shape too!) about ten years ago, for $75. Today? double that, and probaly more. Our dollar just ain't buying what it was.
The VZ 24 is well made, and was used extensively by the Germans during WWII. Check the bore carefully, besides the finish, if there is trouble, that's likely where it will be. The ammo used when that rifle was in service was corrosive primed, and (most of the surplus 8mm still is), and if the bore wasn't cleaned properly, rust and pitting results.