[blam]

You seem to have an 'eye' for archaeological art. Any Ideas/comments?

[Fedora]

It's hard to say too much without photos. I'm curious about the shape of the geometrical engravings and about the distribution and symbolic meaning of violet pottery elsewhere. I find a little information here:

Notes and Sources for Ancient Pottery of the Occident

Combined with small amounts of iron, manganese oxide may give rich shades of cool brown. Combined with small amounts of cobalt oxide, it can produce deep violet or plum colors. . .The presence of sodium or potassium in a glaze favors the production of brilliant strong colors from the addition of various coloring oxides, In alkaline glazes copper oxide gives intense hues of blue-green, turquoise, or blue. The famous "Egyptian blue" color which appears on ancient Egyptian faïence is an alkaline glaze colored by copper. Cobalt in an alkaline glaze gives an intense blue. Iraon gives strong shades of straw color or brown, and manganese gives rich hues of violet and grape-purple. The colors from these coloring oxides are more intense and scintillating in low-fired alkaline glazes than in any other type.