Hi, I have been hanging on to a "1929 Chicago brown seal $100 dollar bill," and was wondering the current value of such a note. Would this be better to hang onto, in hopes it will gain value? It is not in the best condition, as it has a small piece of tape in the top center. The bill also has what looks like, "ink spots" that happened during printing. It is the same color brown as the seal, and looks splattered on the bill. Its very interesting...

