I bought this pipe as souvenir in '65 in Yokosuka. I've always thought it was an opium pipe. But recently I've discovered that it is a traditional Japanese tobacco pipe. I can tell that it is hand made by the irregularities in the brass. And, that also tells me it was not a very expensive pipe to begin with. It has been smoked, but not by me. For one thing, I don't have any of the finely sliced tobacco that is used in it. If you have one, please share and tell us about it.