I have these Confederate notes at the moment:
CS-40 CSA 0 Bond.jpg CS-66 CSA Note UNC.jpg CS-68 CSA Note UNC.jpg
I like the first (CS-40) as it shows interest had been paid on the note. Someone had invested, then gotten a bit of money back before the South surrendered.
At one time, my collection included 315 unique types, going by their Freidberg numbers. I've been forced to sell most of them to pay medical bills.