I didn't even know these things existed in lead until i looked it up. The whole thing is made from lead, other than the knob on the top which seems to have been a replacement. It's as heavy as a brick, why anyone would make a tobacco box out of lead is beyond me, well, maybe it was cheap. But imagine a mixture of tobacco and lead in your pipe?
Anyway, it's decorated with thistles, acorns, flames, fleur de lis, and it's about 5 inches long. I would imagine the loose bit was there to keep the tobacco down inside the box. I've looked around but couldn't find any with feet. I wonder if this might be older than the 19th century ones i've seen on ebay?