Fr. 129. 1878 $20 Legal Tender Note. PMG Choice Uncirculated 63.,The 1875 and 1878 series of Legal Tender notes are known for their ornate use of overprinting with these $20 notes showing "XX" counters at left and right. Just a single variety is observed for this series date and thanks to a small trove of higher grade pieces they are collectible with this much appeal.,,