Military Payment Certificate Series 521 MPC 5¢ 1st Print in use from 5/25/54 to 5/27/58 with outstanding Consecutive Serial Numbers 05885522 & 05885523. These were in use via the US Military in Austria, Belgium, England, France, Germany, Greece, Hungary, Iceland, Italy, Japan, South Korea, Morocco, Netherlands, Philippines, Scotland, Trieste and Yugoslavia.