Smokingpipes.com is, I think, the best source for quality estate (used) pipes.
However, if once you've got a pipe or two, try ebay. It can be a gamble, but I've gotten most of my collection through it. However, I've also gotten a pipe that I'm afraid to smoke, even after my most recent work at cleaning it, because the ghosting is so bad that I can't even describe it!
However, if once you've got a pipe or two, try ebay. It can be a gamble, but I've gotten most of my collection through it. However, I've also gotten a pipe that I'm afraid to smoke, even after my most recent work at cleaning it, because the ghosting is so bad that I can't even describe it!