EUROPEAN UNION. European Central Bank. 20 Euro, 2002. P-3zs. Specimen. PMG Choice Very Fine 35 EPQ. Serial number prefix "Z." Belgium. Serial number "Z00000000009." Specimen No. 1908. Signature of W.F. Duisenberg. Just four examples of this 20 Euro Belgium prefix have been graded by PMG. This example is found in a mid-grade with PMGs all important EPQ qualifier.