Not marked similar technique to another alum bay piece I have.
Pontil is broken off in a neat circle but not polished, the mix of colours is turquoise, dark blue and white with mostly white showing through on the inside although doesn't look cased white, looks like white was the first colour before the turquoise was put on. Apologies for my poor terminology :spls:. The base at the pontil is nearly clear glass, with flecks of turquoise and white on it, you can see through it to the other side

. About 3" tall and 3.5-4" wide
Any information would be much appreciated.
m