Watch List notes:

Costa Rica, copper-nickel 50 centimos, 1968 BCCR, NGC Mint Error MS 64, broadstruck. KM-189.3. Lustrous and very lightly rainbow toned, with raised and expanded rims due to error striking without retaining collar. Pedigreed to the Tamarindo Collection of Costa Rican Error Coins and Paper Money.
($200-300)