Question: Who was the oldest elected president of the country owning the issuer of dollar banknotes?

<P0-S0> The median age upon accession to the presidency is 55 years and 3 months. <P0-S1> This is how old Lyndon B. Johnson was at the time of his inauguration. <P0-S2> The youngest person to assume the office was Theodore Roosevelt, who became president at the age of 42 years, 322 days, following William McKinley's assassination; the oldest was Donald Trump, who was 70 years, 220 days old at his inauguration. <P0-S3> The youngest person to be elected president was John F. Kennedy, at 43 years, 163 days of age on election day; the oldest was Ronald Reagan, who was 73 years, 274 days old at the time of his election to a second term. <SEP> <P1-S0> the united states one - dollar bill ($1) is a denomination of united states currency. <P1-S1> an image of the first u.s. president (1789 -- 97), george washington, based on a painting by gilbert stuart, is currently featured on the obverse (front), and the great seal of the united states is featured on the reverse (back). <P1-S2> the one - dollar bill has the oldest overall design of all u.s. currency currently being produced (the current two - dollar bill obverse design dates from 1928, while the reverse appeared in 1976). <P1-S3> the obverse design of the dollar bill seen today debuted in 1963 (the reverse in 1935) when it was first issued as a federal reserve note (previously, one dollar bills were silver certificates). <SEP> <P2-S0> The Federal Reserve System (also known as the Federal Reserve or simply the Fed) is the central banking system of the United States of America. <P2-S1> It was created on December 23, 1913, with the enactment of the Federal Reserve Act, after a series of financial panics (particularly the panic of 1907) led to the desire for central control of the monetary system in order to alleviate financial crises. <P2-S2> Over the years, events such as the Great Depression in the 1930s and the Great Recession during the 2000s have led to the expansion of the roles and responsibilities of the Federal Reserve System. <SEP> <P3-S0> Today, USD notes are made from cotton fiber paper, unlike most common paper, which is made of wood fiber. <P3-S1> U.S. coins are produced by the United States Mint. <P3-S2> U.S. dollar banknotes are printed by the Bureau of Engraving and Printing and, since 1914, have been issued by the Federal Reserve. <P3-S3> The "large-sized notes" issued before 1928 measured 7.42 inches (188 mm) by 3.125 inches (79.4 mm); small-sized notes, introduced that year, measure 6.14 inches (156 mm) by 2.61 inches (66 mm) by 0.0043 inches (0.11 mm). <P3-S4> When the current, smaller sized U.S. currency was introduced it was referred to as Philippine-sized currency because the Philippines had previously adopted the same size for its legal currency. <SEP> <P4-S0> eisenhower was the last president born in the 19th century, and at age 62, was the oldest man elected president since james buchanan in 1856 (president truman stood at 64 in 1948 as the incumbent president at the time of his election four years earlier). <P4-S1> eisenhower was the only general to serve as president in the 20th century and the most recent president to have never held elected office prior to the presidency (the other presidents who did not have prior elected office were zachary taylor, ulysses s. grant, william howard taft and herbert hoover).