Dictionary.net

• two silver coins invented by Robert Morris in 1783 for national coinage, but not accepted by the Continental Congress. They were called the Mark and the Quint. Their values were respectively about seventy and thirty-five cents, their weights eleven pennyweights six grains, and five pennyweights fifteen grains. There were only a few pattern pieces struck off. For description of this coinage (see Mark, and Quint.)

1894 - Dictionary of United States history
By John Franklin Jameson