Guatemala, cob 4 reales, 1739 (J). S-G1; KM-5; JP-4R7. 13.08 grams. Sharply squarish flan with bold full mintmark, full date and denomination, nicety toned, practically no corrosion. With generic certificate from the salvors. From: Reijgersdaal, sunk in 1747 off South Africa
($200-300)