NGC MS 62 (6639733-014).
Av. INSTITUT DE FRANCE. Right bust of helmeted Athena; below, DUMAREST signature. F.
Rv. Within a wreath of two laurel branches, engraved attribution: ACADÉMIE DES SCIENCES / PRIX DE STATISTIQUE / FONDATION MONTYON / BOUTRON-CHARLARD ET OSSIAN HENRY / 1850.
Gold - 99.80 g - 50 mm - 12 h