Panama, Silver, 20 Balboas, 130 g, commemorating Simon Bolivar 1783-1830, issued in 1975; when this coin issued, as early as 1975, it was labeled as “The largest circulating coin in the world”. The mintage of this coin restricted to the number of orders received by the closing date, 31st May, 1975. In original box, Proof, Rare.