What am I?
1. I am made of metal and was regularly used between about 1880 and 1920.
2. My chimney holder had two round horizontal rings with four perpendicular struts. Each strut is decoratively shaped.
3. I come complete with a burner and a shade
4. My gas pipe bends down and then curls back on itself to end in a wall bracket.
5. I was most useful at night.

Last week's answer?

An Ivory manicure set