Dividend Policy Analysis. Since raising its dividend in December 2014, AT&T had a dividend yield of 5.78% on Sept. 18, 2015, which is calculated by dividing its annual dividend by its closing share price.
Although quarters were never made entirely of silver, the U.S. Mint completely stopped using silver in quarters in 1965, producing the last actual silver quarters in 1964. Prior to 1965, the Mint made quarters out of 10 percent copper and 90 percent silver.
Dimes, quarters, half dollars, dollar coins made before 1964 were silver. Modern, post 1964, coins are made of zinc or a copper/nickel alloy. Neither will attract a magnet. The only coins I know of that would stick to a magnet were the steel pennies made during the 1940 war years, when copper was being rationed.