What you see on the base there is not age, but a coursely ground finish. It means the piece was finished on a pontil rod, cracked off and then smoothed over on a grinding belt so it would not fall over or scratch the table. In a quality piece you'd expect a much smoother bottom - anything from matt to mirror gloss. Chinese usually have a better finish than this, but I would not entirely reject the idea. Mexico is top contender, followed by india. Very attractive colour, though.