I found this old lunch box the other day and the guy I bought it from(paid $5 for it) said it was a coal miners lunch box. after looking around on the web, I think I agree with him but cant find too much info on this exact one. It is a wear ever model number 240. It is about 9 x 6 inches and made of aluminum. It is well worn and fairly dented but I think it looks cool. Anyone know about what its worth?