The image of the Good Shepherd is the most common of the symbolic representations of Christ found in early Christian art in the Catacombs of Rome, before Christian imagery could be made explicit. The form of the image showing a young man carrying a lamb round his neck was directly borrowed from the much older pagan kriophoros (see below) and in the case of portable statuettes like the most famous one now in the Pio Cristiano Museum, Vatican City (right), it is impossible to say whether the image was originally created with the intention of having a Christian significance. The image continued to be used in the centuries after Christianity was legalized in 313.