Check the listing for details. (5777555) Extremely Cool and Binary $1.00 Serial Number. Listed at 75.00 USD. The fixed price for this item is due to a hike in shipping fees and the selling fee still needs to be paid. To compensate, I am offering FREE SHIPPING to all customers.I am not a newbie when it comes to selling error coins and error on US Paper money.If you happen to come across another seller claiming their paper money is Fancy or Rare but won't give any explanation...be careful.Fancy serial numbers are hard to find and combined with just 2 numbers are rare. The serial number of my paper money consists of only two numbers (57775555) which is what we call BINARY.If you look at one of the images it is stated due to only two numbers make it EXTREMELY COOL.57775555 contains a 5-of-a-kind and 1 triple. Only 0.0050% of 8-digit numbers have this combination.57775555 contains a 4-of-a-kind and 1 triple together. Only 0.0051% of 8-digit numbers have this combination.57775555 has 2 unique digits. In 0.011% of 8-digit numbers, there are 2 or fewer unique digits.All of the digits in 57775555 are odd! Only 0.39% of 8-digit numbers have this property.57775555's digits sum to 46. In 12% of 8-digit numbers, the digits sum to at least 46. It will ship with a currency protection sheet along with an explanation of why this is a cool find.It is coming from a non-smoker and no perfume user owner and household.Unless otherwise noted, ALL pictures were taken by me (they are NOT Photoshopped and NOT Stock Photos). SELLER'S POLICY I encourage YOU to ASK me any question(s) if you have any before purchasing this listing because my policy is now NO RETURN. Zoom all pictures for a closer inspection and details since eBay and Bonanza has a zooming feature. I usually ship the same day as long I am home and before 1:00 p.m. After 1:00 p.m. shipping will be the following day. Thank you for stopping by and take care always.