Open the breech and peer down that barrel to see what is in there - it might still be fit to fire. I have a couple later versions of similar - Stevens Favourite - one is Model 1915 and other is earlier version of that. I cleaned these up, and have been firing them with CCI Quiets, although I can not confirm what modern .22 ammo has lowest pressure - likely the .22 ammo from those days used black powder, and probably corrosive priming compound until circa 1930's - so could be a mess in there, if it was never cleaned.
SAAMI (Sporting Arms and Ammunition Makers Institute) was not formed until mid 1920's - so perhaps 30 years after your rifle was designed or made - so whatever SAAMI publishes now as a pressure standard for .22 rimfire, likely does not mean much for those old ones.