Watch List notes:

Costa Rica, brass pattern 50 centavos, 18xx (1873), very rare, encapsulated NGC MS 60. KM-unl. Very rare unlisted pattern, with reeded edge, of a similar design to the gold coinage of 1873, but of an unused design for this denomination, possibly a prototype pattern for the 1876-1879 time period for which 50 centavos were not produced. Lustrous, with rim-flaw at 10 o'clock on the obverse. ($2500-3750)