AUSTRIA - AUSTRIA Burgau (Margraviate of), Maria Theresa (1740-1780). Thaler 1766, Guntzbourg. Av. M. THERESIA. D. G. - R. IMP. HU. BO. REG. On a crown formed by a palm and a laurel branch, a crowned shield supported by two griffins. Rv. ARCHID. AUST. D. BURG. - MARGR. BURGOVIAE (different). Within a wreath of palm and laurel branch: AD / NORMAN / CONVENT / (date). KM.16 - Her.497 - Dav.1148 ; Silver - 40 mm - 12 h NGC MS 62 (6917583-001). Retains most of its original lustre, with faint flats on the high reliefs and a slight patina. Superb in Fleur de coin.