La Capitana Shipwreck - 4 Reales - Countermark is a crowned "F" with two dots

Denomination: 4 Reales                                                                         Weight: 11.43 gm  ​Mint: Potosi, Peru​                                                                                        Reign: Philip IV Assayer: Not visible Date: 1649-1650​ Mount: Sterling Silver frame with 14K gold prongs and nautical bale. Description: Obverse: Bold full cross with particularly strong castles. Reverse: Nearly full shield with clear but lightly punched countermark to left, thin from corrosion, toned all over. History: La Capitana sank in October of 1654 off the coast of Chanduy, Ecuador. The 1,200-ton Spanish galleon was the largest built in Colonial America during the 17th Century, and the flagship of the Vice Royalty of Peru, and the South Sea Armada. This ship was commissioned to carry Spanish Coins including the Potosi Mint scandal coins, the subsequent countermark coins and many others dated from 1649 to 1654.  The galleon, overburdened with unregistered goods,