p6e: 500 Ouguiya from 1991

28.11.1991. 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).

• Country & Pick Number:Mauritania p6e
• Denomination & Currency:500 Ouguiya
• First Year of Issue:1991
• Issue Type: Regular Issue