I found a $100 Confederate bill dated February 17, 1864 while doing renovations. How can I find out if it is real and how much it may be worth. I've dug around on the internet and found that Confederate bill replicas were sold as souvenirs in the 40's and 50's, but I'm not sure if the one I have is real or a replica.

There was both "currency" and "notes" (by individual banks) issued by the Confederacy. Can you, by chance, scan (or take a picture) and post an issue of what you've got?