Johann Friedrich Karl from Ostein, silver medal (diameter approximate 46, 40 mm, approximate 30, 85 g), undated (1744), unsigned, on the promotion of free navigation of the Rhine. Av: palm tree, to the sides two geniuses, over it the bright eye God, circumscribed. Rev: four manned Rhine vessels (Mainz, Trier, Cologne and Palatinate), over it hand from cloud with cornucopia and \"welfare of the RHEINSTROHMS\". Collection P. A. -, collection Walther 514, small edge nick, extremley fine very rare!