Q: I have an old miner's lamp, about 10 inches tall. The top part is metal, the lower part brass. It has a badge on it which says Thomas and Williams. It is in nice condition. Does it have any value?

Mr L

A. These lamps are increasingly collected, especially now that the mining industry has been decimated. Values do vary, often depending on specific collieries, as some pit badges are rarer than others. Typically, such lamps are worth about £100 each, though keen collectors will always pay more for hard-to-get examples. A rare colliery badge on the lamp, or a non-standard design can boost the value.