Seller note says stem is probably not original and I am a total rookie. Please leave your opinion about the stem. This is the first '53 I've seen.
http://www.ebay.com/itm/1953-Dunhill-Tanshell-Patent-Vintage-English-Estate-Pipe-L3522-/271742787210?pt=LH_DefaultDomain_0&hash=item3f4521de8a
http://www.ebay.com/itm/1953-Dunhill-Tanshell-Patent-Vintage-English-Estate-Pipe-L3522-/271742787210?pt=LH_DefaultDomain_0&hash=item3f4521de8a