Potosi, Bolivia, cob 8 reales, (1650-1)O, with crowned script-a countermark (rare, attributed to Arequipa, Peru) on cross. S-P35; KM-19b. 26.21 grams. Oblong flan with nearly full but partially flat shield and cross, the latter with full and bold countermark (Ullian Type F, attributed to Arequipa by Cristina Esteras Martin in Marcas de Plateria Hispanoamericana [1992]), patchy toning all over. From the Maravillas Research Collection of Countermarked Potosi Cobs, with Marex certificate and tag #A2-5/39 showing handwritten commentary by Louis Hudson. Recovered from: Maravillas, sunk in 1656 off Grand Bahama Island ($1500-3000)