I have just placed a stem up for sale on Ebay. I do not know anything about the stem and am hoping that somebody will be able to help me. I guess that it is British, but I am far from sure of this. I would like to update the auction description with more details if possible. You can check the auction out at: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=42333&item=3627346756
Thanks in advance for your help.