Probably not worth selling...
It won't be worth very much at all, as mentioned you could probably get more from turning it in at a police gun buy back than selling or trading it.
However unimpressive it may be ballistically or quality-wise, if properly maintained the Raven actually has a bit of a good reputation as a reliable little quarter bore. If in good shape it'll be better than a lot of the so-called "Saturday-night special" guns.
Much of the time these guns have been stashed somewhere for years in bad conditions and shot a few times or shot a lot over the years and never cleaned or maintained, so if you clean it really well and it is fine mechanically, and the magazine is clean and working well too, it would have much more value as a novelty little range toy or a tackle box / dirty conditions pocket gun than you would ever get from selling it.