That's not possible you have 1908 polish bill as Poland haven't existed in that time - it was occupied. Money from that time could be some value really, for the historical note collectors, it depends on the conservation and historical value. I've been such collector for some time, I still have some notes and coins, but I don't really do that anymore. I'd love to see the photos anyway, also maybe I could help in telling you what you have.
It's worth almost nothing.
That could be some value for collectors. Can I see the photo?