Could be wrong, Stevens made a slew of these break top single shots. I believe you have a Model 35. It has been refinished but not restored. The barrel should be blued and I can see pitting under the replating, and the grips seem to fit poorly. The fact that it is 22 instead of 25 Stevens is nice ( 25 Stevens would make it useless as a shooter ). Because of the " restoring " it is not really desirable as a collectors item but would make a nice shooter. The book value is not much of a guide in a case like this, they rate on original finishes. I don't want to give a WAG, but if I was looking for something to play with, I would go maybe 150 and then bushing the firing pin ( If I remember correctly the 35 had no firing pin bushing ). I may be in error, if so perhaps others will chime in with more information.