<Li> 1917: The obverse of the $1 United States Note was changed slightly with the removal of ornamental frames that surrounded the serial numbers . </Li> <Li> 1918: The only large - sized, Federal Reserve Note - like $1 bill was issued as a Federal Reserve Bank Note (not to be confused with Federal Reserve Notes). Each note was an obligation of the issuing Federal Reserve Bank and could only be redeemed at that corresponding bank . The obverse of the note featured a borderless portrait of George Washington to the left and wording in the entire center . The reverse featured a bald eagle in flight clutching an American flag . </Li> <Li> 1923: Both the one - dollar United States Note and Silver Certificate were redesigned . Both notes featured the same reverse and an almost identical obverse with the same border design and portrait of George Washington . The only difference between the two notes was the color of ink used for the numeral 1 crossed by the word DOLLAR, Treasury seal, and serial numbers along with the wording of the obligations . These dollar bills were the first and only large - size notes with a standardized design for different types of notes of the same denomination; this same concept would later be used on small - size notes . </Li> <P> (6.14 length × 2.61 width × 0.0043 in thickness = 156 × 66.3 × 0.11 mm) </P>

Who designed the back of the dollar bill