I have to disagree about the bill being worth so little...I'd keep it if I were you. After my father died I found his old coin collection including a few 1964 Kennedy half dollars 90% silver, dimes and quarters from pre 1960's. I know the half dollar was worth $11 or $12 on silver content alone, which is quite a bit more than 50 cents face. I doubt you'll get rich off of it, but it's a keepsake from a bygone era...