MEXICO. Lot of (2). El Banco Mercantil de Yucatan. 100 Pesos, ND (1900-04). P-S457p1 & S457p2. Front & Back Proof. PMG Choice Uncirculated 63 & Choice Uncirculated 64 EPQ.
PMG comments "Printer's Annotation" on the back proof. M551p.
Estimate: $300 - $500