United States, Military Payment Certificate, 5 Dollars, Series 661 (ca. 1968). Serial # B00381549B Position 485 Dollars note, printed Series 661 (circa 1968) Vietnam War IssueIssued by United States ArmyBrown and red on light blue underprint; woman at centerBack: Brown and red; girl at centerPCGS Currency certification # 74102451. Pick M69 (Standard Catalog of World Paper Money: Modern Issues by Cuhaj); www.banknote.ws. PCGS Currency Superb Gem New 68 PPQ.