Portugal
Maria II 870 Reis countermark ND (1834) on Mexico 8 Reales 1756 Mo-MM XF, KM104. Host coin Vf, countermark XF and choice. A Mexico 8 Reales 1756 Mo-MM countermarked with a shield in Portugal per decree of 1834 to revalidate it to 870 Reis. A much scarcer host for this countermark issue.
Estimate: 400-600 USD