Watch List notes:

Mexico City, Mexico, 1/2 escudo, 1860/59FH, with contemporary counterfeit Costa Rica 1/2-escudo countermark (Type VI, 1849-57). KM-378.5 (host). 1.68 grams. Strange coin, the host clearly genuine but the countermark clearly not, as issued prior to the host's date of striking, XF overall but with damage on eagle side from mounting and blank where the countermark is on the other side, possibly rare and important.

Estimate: $100 - 200