Portrait of Charles William Ferdinand as Hereditary Prince by Pompeo Batoni, 1767 Charles was the eldest son of Ferdinand Albert II, Duke of Brunswick-Wolfenbüttel. He fought under Prince Eugene of Savoy against the Ottoman Empire before inheriting the Principality of Brunswick-Wolfenbüttel from his father in 1735. Through his mother, he was first cousins with Empress Maria Theresa. On the suggestion of his court-preacher, in 1745 he founded the Collegium Carolinum, which is today known as the Technical University of Brunswick. He also hired Gotthold Ephraim Lessing as the librarian for the Bibliotheca Augusta. Charles attempted to promote the economic development of his state. For example, he founded the Fürstenberg Porcelain Company and installed mandatory fire insurance. However, he did not manage to keep the state finances in check. As a result, in 1773 his eldest son Charles William Ferdinand took over the government. When the American Revolution began in 1775, Prince Charles saw an opportunity to replenish the duchy's treasury by renting its army to Great Britain. In 1776, Duke Charles signed a treaty with his cousin George III of the United Kingdom to supply troops for service with the British armies in America. 4,000 soldiers were dispatched under General Friedrich Adolf Riedesel. The Brunswick troops fought in General John Burgoyne's army at the Battles of Saratoga, where they were taken prisoner as part of the Convention Army. Numismatically speaking, there were many great coins issued under his name. I recently acquired a 1752 mining Thaler that appeals to me for multiple reasons. I have been fascinated by the mining Thalers and this one has 2 Wildmen on the reverse. In the 1740s and ’50s, there was a series of beautiful mining Thalers issued. They have a common reverse but each represents a different mine on the obverse. They are all at least scarce and command steep prices in better grades. The first picture below is the seller's photo. While I consider myself an amateur photographer, I could see obvious faults with his photos. Following are some quick cell phone photos that, while far from perfect, give a more accurate idea of the actual appearance. Brunswick-Wolfenbuttel 1752 IBH Thaler Obverse: D.G. CAROLVS - DVX. BRVNSVIC. - LVNEB. 1752, Arms with Crown (oval shield on V-shaped base), supported by two Wild Man. Reverse: CANDIDVS HAEC PROFERT MONTANVS PRAEMIA CYGNVS, lake with a swan under clouds. Below in 5 lines - DIE GRVBE WEISSER SCHWAN KAM IN AVSBEVT IM Q: LVCIAE 1732 I.B.H. Note: White Swan Mining Thaler. Davenport-2157 Ruler: Karl I Mint: Zellerfeld Mint Master: Johann Benjamin Hecht Composition: Silver Johann Benjamin Hecht was the mint master at Zellerfeld from 1739-1763. I would love to show you more of these but I have a personal rule that I only share pictures of coins that I actually own. My intention is to pick up more of these as I find them and can afford them. In the meantime, if you have a copy of Davenport check out these: 2167-Bliefeld Mine, 2160-Cronenburg’s Luck Mine, 2164-Goodness of the Lord Mine, 2166-Rainbow Mine, 2168-King Karl Mine, 2169-Blessing of God Mine. You can also find them all here: http://www.coinfactswiki.com/wiki/Silver_crowns_by_Davenport_number#Davenport_2000-2299 If you are interested, here is a link to a writeup I did on an earlier mining thaler. https://www.cointalk.com/threads/lauthenthal-mining-thaler.355747/ Sources: Wikipedia German Talers 1700-1800 by John S. Davenport Standard Catalog of German Coins 1501-Present 3rd Edition Please post any other mining Thalers that you may have....or anything else you want to share.