I scan the drawers at work for stars, low numbers and older dates and came across an 88 dollar bill F56194192X. Are X's very common?
an $88 bill? must be counterfeit lol i believe that X's are no more valuable than any other letter (assuming you are talking about a 1988 $1 bill)
1988 bills in circulation are pretty uncommon at this point in time. X is also a higher and uncommon block letter. If someone is looking to complete some sort of a set, they may give you $2 to $3 for it if the condition is really nice. If you scan bills at work your better off letting this one go for another * note in lower production.
Ok I was curious, the X was an eye catcher. Best find so far is a 2006* $10, total run of 768,000. And a 1963* $1 bill, minor wallet dent but other than that it's crisp. Hard to find production numbers from that far back but I got it for a buck.
Must be series 88A. Four districts made it that high in the alphabet , New York (B), Atlanta (F), Chicago (G) and San Francisco (L). http://www.uspapermoney.info/serials/f1988as.html
It depends on condition. I know several collectors looking for a 2009 $1 L-X note, but they are holding out for a CU example. A little over 12 million were printed.