Hello, the postman came today, he brought a Tilley lamp, what else. In the advertisement my eye fell on the pump knob, I think you guys in England call for butterfly. A few questions, how about the green color on the tank, should I leave it or should I remove it in order to have a copper tank? The plus of this lamp is a top, hat without a scratch, but it appeared there is no cleaning needle, one cannot have all. Happy to hear your reflections, regards, Ton.