Potosi, Bolivia, oval silver medal, ca. 1825, Arts and Sciences Institute. Fonrobert-unl. (cf. 9446 but lower weight and different Minerva). 34x29 mm; 11.91 grams. Obverse with Minerva facing, holding upright lance and shield, below legend COLEJIO DE CIENCIAS Y ARTES; reverse with REPUBLICA / BOLIVIANA / LIBRE POR LA / CONSTITUCION above rose on stem. Toned UNC. ($350-500)