p51k: 500 Pesos from 1961

25.1.1961. Black on multicolor underprint. Like p43 but without No. above serial number. Middle signature title: INTERVENTOR DE LA COM. NAC. BANCARIA. Signature varieties. Back: Green. Palace of Mining at center. Printer: ABNC. Series: JO-JT.

• Country & Pick Number:Mexico p51k
• Denomination & Currency:500 Pesos
• First Year of Issue:1961
• Issue Type: Regular Issue