Cartes des anges

St. Expeditus

Many theories try to deny the existence of Saint Expeditus. The name "Expeditus" has certainly evoked puns, so he has become the saint of rapidity. At first, he was invoked for urgent causes; he has since become the patron of dealers, sailors, students, and examinees; he is also implored for success in lawsuits.

He is portrayed as a soldier (the Latin word "expeditus" was also the name of a category of soldiers) with a crow with the writing "cras" ("tomorrow") underfoot. In Germanic countries, the saint indicates a clock, whereas in the rest of the world (especially in recent representations) he has a cross with the writing "hodie" ("today") in his hand.

Source: http://en.wikipedia.org/wiki/Expeditus