⅙ Thaler - Frederick William III

Frederick William III spent much of his reign threading a careful path between the reactionary demands of his nobility and the liberal pressures building across the German states after 1815. The fractional thaler denominations issued under his name were workhorse coins — absorbed into daily commerce across Prussia's expanded post-Napoleonic territories, including the Rhine provinces acquired at the Congress of Vienna, where French decimal habits had already taken hold and Prussian silver coinage arrived as a foreign novelty.

The lengthy production run across multiple mints accounts for the range of references cited, with die varieties documented under the Olding and Schrötter systems differing primarily by mint mark and reverse legend spacing.