Greek ritual graffito scratched on wall plaster in the Mithraeum of Dura-Europos, mentioning the “fiery exhalation” and the “sacred nitre” of the Magi.
"On this same bench, where the banquet scene was found, and adhering to the south wall (fig. 12, II), were many fragments of plaster decorated with green leaves and tree branches" (Report, 104).