This is a brass Cambrian lantern. I used it before, but it started leaking oil from the bottom and I couldn't use it properly. Therefore, I am selling it as a junk item. Please use it for display or repair. Flat wick size: Approximately 13mm Height: Approximately 19cm, Diameter: Approximately 7.5cm Oil capacity: Approximately 30cc (estimated) Burning time: I only burned mine for about an hour, but there was still oil left, so I think it could burn for more than 2 hours if used properly.