I agree with Paul Courtney regarding the post from Michael Kolb.
The vessel looks like a teapot rather than a lamp.  I'm not sure I
agree with his attribution of the pot as an Yixing vessel.  While the
size and the elaborate vine and flower sculpting are consistent with
Yixing styles, it appears that the vessel is made of stoneware.  It's
my impression, based mostly on a limited familiarity with modern
Yixing teapots, that they are typically made of earthenware, often
covered by a very fine, almost glaze-like, slip.  Nonetheless,
perhaps Paul Courtney is correct, for as he points out it is difficult
to discern the fabric or ware type from the photos, especially
considering the pot's apparently prolonged immersion in salt water.

--Chris Borstel