Probably just a sporterized Mauser. Very common thing to do in that era, taking mil surplus rifles and converting them for hunting use. Chop the barrel down(or rebarrel/rechamber), add sporter style stock, drill for scope mounts, bend bolt handle, etc...
There is a million of these sort of rifles out there, Mausers, '03 springfields, Krags, etc... Some were done nicely, others are chop jobs. They're usually not worth anything other than as a run of the mill hunting rifle.
My opinion, ball park, $250 +/- $100 depending on where and how you sell it.
Last edited by Marcus99; 01-06-2018 at 07:57 PM.