Potosi, Bolivia, cob 1 real, 1729M, ex-Princess Louisa (1743), mounted pillars-side out in silver bezel with swivel bail.6.44 grams total.Full pillars with clear date, bold but off-center cross with second date below, contrasting toning in crevices, lightly corroded VF, thick-wire mount.From the Princess Louisa (1743), with photo-certificate.From: Shipwreck Coins
($100-150)