p6a: 500 Ouguiya from 1979

28.11.1979. Green, brown, and dark green on multicolored underprint. Signature varieties. Back: brown, green, and black. Field workers at left, mine entrance complex at right. Watermark: old man with beard. Printer: G&D (without imprint). Thin security thread.

• Country & Pick Number:Mauritania p6a
• Denomination & Currency:500 Ouguiya
• First Year of Issue:1979
• Issue Type: Regular Issue