Any man to appear on an American dollar coin was a U.S. President.
President Calvin Coolidge has this honor.
Each president's portrait from Washington to Reagan will appear on the coins, 4 per year, in the order they served. Any former presidents who pass away before the series ends in 2016 will be added to the series. By law a living president cannot appear on a U.S. coin. See the link below for more details.
He's considered a minor president and does not appear on any current bill. There is a one-dollar US coin with his likeness on it that is currently in circulation. It is part of an ongoing series that honors each president.
It sounds like a modern U.S. presidential one dollar coin. 1881 is the year Garfield was President, though the coin itself was minted in 2011. It's worth one dollar. However if it has the word "assassinated" on it, the item could be a memorial token rather than a coin. That word doesn't appear on any of the presidential dollars, only the date that each person served as president.
The first president to appear on a coin was Lincoln on the penny back in 1909. As far as coins including names, that didn't happen until the introduction of the presidential dollar in 2007, starting with Washington.
The dates that appear below the portrait on all Presidential dollars are the year(s) that the person served as president. The date of mintage and the mint mark appear on the edge of the coin in small incuse (recessed) letters.
As of 2013, President Lyndon B. Johnson has not been featured on any U.S. coin or currency. However, his image is due to appear on a presidential $1 coin to be released in 2015.
By law, only those who are deceased can appear on US currency. The latest president who would be eligible for this would be President George H. W. Bush following his death in 2018. As of 3/15/21, President Carter is still alive, and thus not legally permitted to appear on currency. He can, however, appear on collectible coins.
Abraham Lincoln had his likeness put on the one cent coin (i.e.Penny) in 1909 in honor of his birth in 1809 and so was the first actual person to be on a US coin.
So far, Lincoln, Grant and Hayes have appeared with beards on a US Coin. Garfield will makes his bearded appearance on November 17, 2011 and Benjamin Harrison's beard is scheduled to appear on a coin sometime in August , 2012.
No- Taft has never been on any form of US money. In a few years he is scheduled to appear on a 1-dollar coin as part of the president's series.