Caffeine failure, operator halted. I just remembered that he doesn't do nickels, but, he does link to his site of choice (I'd give the link but I don't remember it and I'm too $@#%$ to look it up right now). Odd... the above looks insane because it's a postscript to a comment that fell into the bit bucket. I originally said I assume you're asking about the "9" which looks like probable MD but who knows for sure, and then asked if you'd checked on John Wexler's doubleddie.com for that date/mint mark.
oh shucks! that must be why it never works when i try to read minds! on the plus side, i have not seen any aliens!