Fr. 2077-A. 1990 $20 Federal Reserve Note. Boston. PMG Choice Uncirculated 64 EPQ. Insufficient Inking Error.A $20 Federal Reserve Note issued under the Series of 1990 which lacks the Third Printing and its associated Treasury overprint. The Federal Reserve district seal is demonstrated by a sharp and deeply embossed impression which attests that this piece was issued by the Federal Reserve Bank of Boston.