Costa Rica. 50 Colones 1974, Green Turtles (Chelonia mydas), Series: Wildlife Conservation, KM 200a, mintage of 11000 pcs, Silver 38,6 mm, weight 28,28 g. .500, Condition Proof
Costa Rica, Copper-Nickel pattern 1 centavo 1892 ("1 CENTAVO"), KM Pn6, Cu-Ni 20 mm, Condition NGC SP 66 Cameo, very rare trial struck in Cu-Ni in perefct condition The only and highest grade for this type of coin in NGC.
Costa Rica. 50 Colones 1974, Green Turtles (Chelonia mydas), Series: Wildlife Conservation, KM 200, mintage of 7599 pcs, Silver 38,6 mm, weight 25,55 g. .500, Condition aUNC
Costa Rica. 100 Colones 1974, Manatee, series: Conservation, KM 201a, Silver 42 mm, weight 35 g. .925, mintage 11000 pcs, Condition Proof
Costa Rica. 50 Colones 1974, Green Turtles (Chelonia mydas), Series: Wildlife Conservation, KM 200a, mintage of 11000 pcs, Silver 38,6 mm, weight 28,28 g. .500, Condition Proof