Jake,a Pic or two would help.
However, Harley's masterwork says it is a Stevens. Made between 1915 and 1940. I strongly recommend having a smith look it over before you fire even one round.With his/her blessing, shoot light lead loads of appropriate shell length, and have fun.
Even in new condition, there have little collector interest and everyone has a Single Shot or six already. Best guess, about $100-150.
HTH....