COSTA RICA. 1,500 Colones, 1974. PCGS PROOF-68 DEEP CAMEO Secure Holder.Fr-28; KM-222. Wildlife Conservation Series, from a mintage of only 726 pieces. Displays the giant anteater, a curious insectivore that walks on its knuckles, as is visible in this nicely detailed portrait. Stunningly produced and carefully preserved without toning, haze, or spots.PCGS PROOF-68 DEEP CAMEO Secure Holder.