For sale is what I believe to be a candle lit head lamp for a vintage bike. It should have some sort of mounting bracket/base and i think that the lid to the assembly was replaced at some point. It is in very nice condition, glass is intact with no cracks or breaks. Brass assembly is very nice- would likely respond well to a polishing. See pics. 

If you have any questions, or would like to see additional pictures, please ask!