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American wartime "silver nickels" were composed of 56% copper, 35% silver, and 9% manganese. The reason given for this composition is that it matched the magnetic and electrical properties of 75% copper/25% nickel nickels, which was important for vending machines. Modern American dollars contain a small amount of manganese. Magnesium
The American trade dollar therefore had to contain more silver, at 420 grains of 90% fine silver, fine content 378.0 grains (24.49 g), or 0.44 g more fine silver than the regular circulation Seated Liberty Dollars and Morgan Dollars. Most trade dollars ended up in China during their first two years of production, where they were very successful.
The United States trade dollar was a dollar coin minted by the United States Mint to compete with other large silver trade coins that were already popular in East Asia. The idea first came about in the 1860s, when the price of silver began to decline due to increased mining in the western United States .
Under contractual obligation, these coins were to be returned to the mint once the compatibility tests were complete. Of the approximately 250 coins minted, many were not returned to the mint, leading to significant debate surrounding the legality of owning these coins. High-grade examples of the 2000p 10-cent issue range from $1,500 to $3,000 CDN.
The value of silver dollars can vary greatly, whether it’s the 1964 Kennedy half dollar or the 1922 silver dollar coin. And some rare specimens fetch astounding amounts at auctions.
On "Pawn Stars" Rick Harrison had to spend a pretty penny ... to get a pretty silver dollar. A 1922 High-Relief Proof Coin to be exact. A coin expert told Rick and the seller that it's, "one of ...