Modern Dollars information: All Modern Dollars, including Eisenhower, Susan B. Anthony, Sacagewea, Native American and Presidential, for auction and Buy It Now at GreatCollections. Since 1794, One Dollar coins have been an integral part of the U.S. money system. While the silver version was phased out in 1935, dollar coins returned to circulation in 1971. These modern dollar coins are struck in less expensive base metals, but still retain the legal tender value of $1 each. Dollar coins may be infrequently seen in circulation today, but they are still highly desirable among collectors.