

“series 681”
This is a Series 681 $20 Military Payment Certificate from 1969, presented in uncirculated condition with crisp, pristine surfaces showing no wear or damage. The note features distinctive reddish-brown and turquoise coloring with a portrait of a soldier in military helmet on the obverse and a military transport aircraft on the reverse, both surrounded by intricate geometric security patterns. As a Military Payment Certificate from the Vietnam War era, this represents an important piece of American military monetary history, with the specific Series 681 designation making it identifiable within the MPC catalog system.
Common. Military Payment Certificates, while no longer in circulation, were produced in substantial quantities for military use during the Cold War and Vietnam War periods. Series 681 from 1969 represents a standard wartime issuance with no documented print run restrictions or recall status. The uncirculated condition is relatively common for MPCs as many were preserved by servicemen and collectors. No specific scarcity premiums are associated with this series or denomination.
Military Payment Certificates were issued by the U.S. Army for use exclusively within military establishments, serving as an alternative currency to prevent black-market proliferation of standard U.S. dollars in overseas bases. The 1969 issuance places this note during the Vietnam War, a period when MPCs were extensively used in Southeast Asian theater operations. The imagery—a soldier and military transport aircraft—directly reflects the military purpose and Cold War operational context of the certificate's intended use.
The obverse features a centrally-positioned oval portrait of an American soldier wearing a combat helmet, serving as the dominant visual element. This is flanked by radiating sun-like geometric patterns on both left and right sides, creating a symmetrical design emphasizing military authority and strength. The reverse depicts a military transport aircraft (consistent with cargo planes such as the C-130 Hercules used during this period) in flight, positioned centrally against a background of complex wavy line patterns. Both sides employ an ornate reddish-brown and turquoise color scheme with cream/off-white accents, creating visual distinctiveness. The intricate fine-line geometric patterns throughout serve dual purposes as decorative elements and anti-counterfeiting measures typical of high-security currency printing.
FRONT: 'MILITARY PAYMENT CERTIFICATE' (header designation); '20' (denomination in corners); 'SERIES 681' (series identifier); 'C02445419C' (serial number); '6' (plate position marker); 'FOR USE ONLY IN UNITED STATES MILITARY ESTABLISHMENTS — BY UNITED STATES AUTHORIZED PERSONNEL IN ACCORDANCE WITH APPLICABLE RULES AND REGULATIONS' (restriction clause). REVERSE: 'MILITARY PAYMENT CERTIFICATE' (header); '20' and 'DOLLARS' (denomination in ornate numerals at all four corners); 'FOR USE ONLY IN UNITED STATES MILITARY ESTABLISHMENTS — BY UNITED STATES AUTHORIZED PERSONNEL IN ACCORDANCE WITH APPLICABLE RULES AND REGULATIONS' (restriction clause, repeated).
Intaglio engraving with multiple color printing, utilizing fine-line geometric patterns and radiating designs as integral security features. The complexity of the background patterns, the precision of the portrait rendering, and the multi-color separation visible in the reddish-brown, turquoise, and cream inks indicate professional security-printer production. U.S. Military Payment Certificates of this era were typically produced by the Bureau of Engraving and Printing or other designated security printers under strict military specifications, employing hand-engraved plates with extremely fine line work to prevent counterfeiting.
Series 681 designation is the primary variety marker for this note. The observed serial number 'C02445419C' with the '6' plate position marker indicates standard production printing. No overprints, color variations, or other documented varieties are apparent from the visual analysis. The series number itself identifies this as part of the standard Series 681 production run, distinguishing it from earlier (Series 641, 651, 661, 671) and later MPC issues.