Fondue burner, or wax melter, with aluminum top, and steel base and handle.  The top has a brass looking finish, and the steel bottom is black. 

It has some minor surface corrosion, but a nice patina.  See photos for detail.

The top is a little over 3.5 inches across.

I will be listing hundreds of antiques, vintage books, magazines and media in the coming weeks and months. Keep a look out for additional listings, and thanks for supporting this cancer survivor and small business!