Legal Tender Notes, also known as United States Notes, were introduced during the Civil War. The size was reduced to modern standards beginning with Series 1928, and only $1, $2, $5, and $100 notes were issued in the smaller size. The face of the small-size $5 Legal Tender Note features a central portrait of Abraham Lincoln, while the back depicts the Lincoln Memorial. This popular Series 1928 $5 currency note bears Woods-Mellon signatures, as well as the distinctive red seal and serial numbers unique to Legal Tender Notes.