This is a fairly old cocktail, which I believe first appears in the 1887 edition of Jerry Thomas's Bartender's Guide. In it, he says: "The name of this drink is a misnomer, as coffee and bitters are not to be found among its ingredients, but it looks like coffeee when it has been properly concocted, and hence probably its name." It is important to note his point about "bitters" in the above. What he is pointing out, is that this drink is being classified as a "cocktail", and yet it doesn't include the defining ingredient for a cocktail, bitters.