Fr. 2175-As. 1996 $100 Federal Reserve Note. Boston. PMG Choice Uncirculated 64. Specimen. Red Specimen overprints and specimen serial number of "AA23456789A". Red specimen No. 0365 on the reverse in the bottom right corner. These Federal Reserve Note specimens are always popular with collectors. They are extremely scarce and downright rare when compared to the issuance of specimen notes from other countries.