MEXICO: AV 4 escudos, 1857/6-Mo, KM-381.6, assayer CH, NGC graded MS62. A rare date according to Richard A. Long in "Gold Coins of the Early Mexican Republic, 1823-1873". He noted only 18 examples offered between 1969 to 2001 in public sales.
Estimate: 2,000-2,400 USD