The obverse of our denarius depicts the Roman goddess Juno wearing a goatskin cap. She is therefore Juno Sospita, Juno as the goddess of matrimony and childbirth. The reverse shows a girl and a snake facing each other. The snake stood for prosperity, and the design alluded to the annual festival for Juno in Lanuvium, where a virgin had to descend into the grotto under Juno's temple to feed her sacred serpent. The ceremony was understood as omen of fertility, and took place every year at the beginning of the sowing season, to learn about the productivity of the coming year.