SWITZERLAND. Wallis. Sitten. Franz Joseph Friedrich Ambüel, 1760-1780. 20 Kreuzer 1777 (Silver, 28 mm, 4.16 g, 12 h), Sitten (Sion). F.E.AM-BUEL E.S.C.E.P.RE.VALL / 17-77 Mitre above ornate coat of arms. Rev. SUB TUUM PRÆSIDIUM CONF / CR - 20 Madonna, holding scepter in her right hand and infant Christ in her left arm, emerging from a cloud, with rays behind and nimbate with seven 5-pointed stars; coat of arms below. Divo/Tobler 974. HMZ 2-1068a. Palézieux 295. Very rare. Tiny marks on the reverse, otherwise, very fine.