Columbia subject headings:
Art, Early Christian--Themes, motives.
Christian art and symbolism--To 500--Themes, motives.
Purple in art.
Harvard subject headings:
Art, Early Christian--Themes, motives.
Christian art and symbolism--To 500--Themes, motives.
Purple in art.
Princeton subject headings:
Art, Early Christian--Themes, motives.
Christian art and symbolism--To 500--Themes, motives.
Purple in art.