The reverse of this coin depicts the Puteal Scriboniarum which L. Scribonius Libo renovated. According to ancient sources, the Puteal Scriboniarum was a bidental, that is, a spot which had been struck by lightning. It took its name from its resemblance to the low enclosure around a well (puteus) that was between the Temple of Castor and Pollux and the Temple of Vesta, near the Porticus Julia and the Arcus Fabiorum (arch of the Fabii). The praetor’s tribunal was convened nearby, having been removed from the comitium in the 2nd century BC. It thus became a place where litigants, money-lenders and business people congregated. Foundations of well were discovered during excavations in 1950. Bonus Eventus, originally the god of success in trade and agriculture who should ensure good harvest, bacame later the god of luck and happy end. He could commemorate recent event - the end of Catilinarian conspiracy.