Ancient Pagan and Modern Christian Symbolism
by Thomas Inman, M.D. (1874)
Pagan and Christian symbolism

Figs. 25-27

Figures 25, 26, 27, are simply varieties of the solar wheel, intended to represent the idea of the sun and moon, the mystic triad and unit, the "arba," or four. In Figure 26, the mural ornament is introduced, that being symbolic of feminine virginity. For explanation of Figure 27, see Figures 85, 86.