This is a lovely miniature porcelain handpainted oil lamp.  I am unsure of the maker as there is no mark or attribution.  The overall height of this lame is 8 5/8 inches and 3 1/4 inches in diameter.  The lamp is 4 3/4 inches from the base to the top of the burner and 2 1/2 inches from the base to the bottom of the burner.

Should you have any questions, please feel free to contact me.

As always, thanks for stopping by and happy bidding!!