COSTA RICA. 1/2 Escudo, 1850-JB. San Jose Mint. PCGS MS-61. Fr-10; KM-97. Mintage: 3,388. An ever-popular type in a fairly <strong>SCARCE</strong> grade level, this enchanting example exhibits the typical striking weakness upon the obverse, but also offers a great deal of shimmering brilliance in the fields. From the David Sterling Collection.