Military Payment Certificate MPC 10 Dollars Series 521 with "57" notation (as in Heinz). In use from May 25, 1954 to May 27,1958 (same exact date that series 541 was put into circulation) by US Military personnel, stationed in Austria, Belgium, England, France, Germany, Greece, Hungary, Iceland, Italy, Japan, South Korea, Morocco, Netherlands, Northern Ireland, Philippines, Ryukyus, Scotland, Trieste and Yugoslavia. All other denominations in this 521 series had multiple printings except this $10 note, which only had one.