1928 $20 Federal Reserve Note, from the popular and scarce Minneapolis district, with green seal and serial numbers.  

This is the popular so-called 'numeral' note because these 1928-era FRNs featured a number inside the district seal, rather than the letters which followed in later versions.

PMG has graded this note Choice Unc 64 EPQ, with the distinction of Exceptional Paper Quality.

Friedberg # is 2050-I; serial # is I02081839A.  Signatures are Tate and Mellon.

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.