1990 $100 bill with seven out of 8 zeros in the serial number! A 00090000 A.  

• 7-0F-A-KIND
• 4 OF A KIND & TRIPLE TOGETHER.
• ONLY TWO NUMBERS (BINARY)
• SUM IS 9
• ALL DIGITS ARE MULTIPLIERS OF 3 
• ALL ZERO'S AND A NINE!   RARE, RARE, RARE!