Susan B. Anthony dollar melted, their seignorage would have been added to the debt. Accordingly, the coins were placed in government storage, to be dispensed as needed. The coin's design did have repercussions north of the border; when Canada introduced its new one-dollar coin in 1987, its dimensions were made similar so that vending machine specifications could be common between the two nations. When the Baltimore, Maryland Metro Subway opened in 1984, it used the Susan B. Anthony dollar coin as tokens with which to buy tickets. It became the largest single user of Susan B. Anthony dollar coins in its history. Despite their
Dollar coin (United States) dollar and is guaranteed to contain one troy ounce of 99.9% pure silver. It is authorized by and codified as (e)-(h). Its content, weight, and purity are certified by the United States Mint. In addition to the bullion version, the United States Mint has produced a proof version and an uncirculated version for coin collectors. The Silver Eagle has been produced at three mints: the Philadelphia Mint, the San Francisco Mint, and the West Point Mint. The American Silver Eagle bullion coin may be used to fund Individual Retirement Account investments. The Sacagawea dollar was authorized by Congress in 1997