It's nice to see someone concentrating on paying off student loans as opposed to those that continue to put it off hoping that some socialist will take over and forgive them (i.e. - transfer the debt to the taxpayers). It was funny to recently see Elizabeth Warren put on the spot by someone who had paid their loans off asking her if he would get the money he paid back if student loans were forgiven. Her response was "Of course not!"
It is a Chinese cash coin, probably from the late 19th century. It appears to be in very nice condition. The hole in the center allowed them to be carried around on a string or wire. You can probably find the date and denomination in the Numista database or other references.