Antique miniature oil lamp.  The base is milk glass in the Block & Dot pattern (also referred to as Mission Octagon) and it has a clear glass chimney.  The burner appears to be old/original, the wick turner turns and there is wick, however the identification on the turner is worn off.  The base stands about 3" tall whereas the chimney measures 3.5" tall. With the 1" burner, the lamp stands approximately 7.5" tall.  I had this on display as part of a collection.  It is in good condition with no noticeable damage.  We are a smoke free home.