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The Scandinavian silver alloy contains 83% pure silver and 17% copper or other metals. [10] German silver will be marked with a millesimal fineness of 800 or 835 (80% or 83.5% pure silver). Any items simply marked "German silver", "nickel silver" or "Alpaca" have no silver content at all, but are mere alloys of other base metals. [citation needed]
As with all British silver coins, the silver content was reduced from sterling (0.925) silver to 50% silver, 40% copper, 10% nickel in 1920, 50% silver, 50% copper in 1922, and 50% silver, 40% copper, 5% nickel, 5% zinc in 1927, while the design of the reverse of the circulating threepence (but not the maundy threepence) was completely changed ...
The half dollar was changed from 90% silver to 40%. [18] Congress passed the Coinage Act of 1965 in July. [19] The new half dollars retained their silvery appearance, due to the outer layer being 80% silver and 20% copper. The coin was also minted with an inner layer of 21% silver and 79% copper.
In Western Europe, the solidus was the main gold coin of commerce from late Roman times to Pepin the Short's currency reform in the 750s, which introduced the silver-based pound-shilling-penny system. In Late Antiquity and the Middle Ages, the solidus also functioned as a unit of weight equal to 1 ⁄ 72 Roman pound (approximately 4.5 grams).
The silver threepence continued to be minted, as there may have been some uncertainty about how well the new coin would be accepted. The reign of Edward VIII saw the planned introduction of a new, larger, nickel-brass (79% copper, 20% zinc, 1% nickel) twelve-sided threepence coin. This coin weighed 6.6 grams (0.23 oz) and the diameter was 21 ...
Following the establishment of the Iraqi Republic, a new series of coins was introduced in denominations of 1, 5, 10, 25, 50, and 100 fils, with the 25, 50, and 100 fils in silver until 1969. In this series an allegorical sun replaced the image of the king, shapes and sizes remained the same with the exception of the 1 fil which was decagon ...