Editing Maria Theresa thaler (section)

==History==
{{More citations needed | section|date=April 2024}}
In 1741, the first MTT was struck according to the {{lang|de|[[Reichsthaler]]|italic=no}} standard with {{frac|1|9}} of a [[Cologne mark]] of fine silver, or 25.98 grams. In 1750 a new [[thaler]] was struck with a gross weight of {{frac|1|10}} of 1 Vienna mark of silver, {{frac|5|6}} fine (with a fine silver content of 23.39 grams, or {{frac|1|10}} of a Cologne mark). In 1751 this new standard {{lang|de|[[Conventionsthaler]]|italic=no}} was effectively adopted across the German-speaking world when it was accepted formally in the Bavarian monetary convention. This new, post-1751 thaler has continued as a trade coin ever since.

Since the death of Maria Theresa in 1780, the coin has always been dated 1780. On 19 September 1857, Emperor [[Francis Joseph of Austria]] declared the Maria Theresa thaler to be an official trade coinage. A little over a year later, on 31 October 1858, it lost its status as a currency in Austria.

The MTT could also be found throughout the [[Arab]] world, especially in [[Saudi Arabia]], [[Yemen]], and [[Muscat and Oman]], in Africa, especially in [[Ethiopia]], and [[India]]. Being of similar size to the [[Spanish dollar|Spanish eight-real coin]], and initially thought to be of French origin, the MTT acquired the Arab name {{lang|ar-Latn|al-riyal al-fransi}} ({{lang|ar|الريال الفرنسى}}, literally the 'French riyal').<ref>{{Cite web |url=https://www.sama.gov.sa/en-US/Currency/pages/historicalinfo.aspx |title=The Historical Framework of the Currency of Saudi Arabia }}</ref> This coin was therefore the predecessor to, among others, the [[Saudi riyal]] and the [[Ethiopian birr]].

During the [[Japanese occupation of the Dutch East Indies]] in World War II, enough people preferred it to the money issued by the occupying forces that the American [[Office of Strategic Services]] created counterfeit MTTs for use by resistance forces.<ref>{{cite journal |journal=[[Popular Science]] |date=July 1963 |pages=56–58 |title=Deadly Gadgets of the OSS |last=Lovell |first=Stanley P. |url=https://books.google.com/books?id=pSADAAAAMBAJ&q=magazine_serial:MjwEAAAAMBAJ |format=PDF |access-date=2009-12-01 }}</ref>

In German-speaking countries, following a [[German Orthographic Conference of 1901|spelling reform dated 1901]] that took effect two years later, {{lang|de-1901|Thaler}} is written {{lang|de|Taler}} (the spelling of given names like {{lang|de-1901|Theresa}} was not affected). Hence 20th-century references to this coin in German and Austrian sources are found under {{lang|de|Maria-Theresien-Taler}}. The spelling in English-speaking countries was not affected.

The MTT continues to be produced by the [[Austrian Mint]] and is available in both [[proof coinage|proof]] and uncirculated conditions.<ref>{{cite web |url=https://www.muenzeoesterreich.at/eng |title=Austrian Mint |website=www.muenzeoesterreich.at }}</ref>