MEXICO. El Banco Mercantil de Monterrey. 100 Pesos, ND (1900-07). P-S356As. Specimen. PMG Gem Uncirculated 66 EPQ.
(M428s2). Middle signature title of Consejero. Red specimen overprints, serial numbers and punch cancellations. PMG Pop 3/None Finer.
Estimate: $700 - $1000