The value of pipe #320 is n/a points.
Billy Bob Bosen offered three pipes on eBay. I won the bidding but was disappointed that the colors in his photograph were misleading and they all turned out to be duplicate pipes. So without further ado they all went directly to the Pipes for Sale page. Al Eckhoff had refrained from bidding on my assurance that he could have any of them that turned out not to fit the collection. Luckily for him (and me) he was able to purchase them from me for what I paid.