Potosi, Bolivia, cob 8 reales, 1750q.S-P50a; KM-40; Cal-512.19.21 grams.Smooth corroded surfaces but decent details including full pillars and choice complete cross, one full date and a partial one visible.With original photo-certificate from Uruguay.From: Luz, sunk in 1752 off Montevideo, Uruguay
($200-300)