1988-A $20 Federal Reserve STAR Note, from the Chicago district, with green seal and serial numbers.  

PCGS Currency has graded this note Apparent XF 45, with the comment 'minor stains' on its holder.

Friedberg # is 2076-G*; serial # is G01539656*.  Signatures are Villalpando and Brady.

DBR Currency - Online paper money at its finest

Note:  eBay may collect sales tax on your order, the amount of which depends on your locale of residence.