On the old forum, we had a British subsection I can't find now. There was a black briar thread. For any one interested, there is an ODA on ebay! Looks like beauty.
EXCELLENT! 1973 Dunhill BLACK BRIAR ODA 845 CLASSIC CANADIAN ENGLISH Estate Pipe | eBay - https://www.ebay.com/itm/EXCELLENT-1973-Dunhill-BLACK-BRIAR-ODA-845-CLASSIC-CANADIAN-ENGLISH-Estate-Pipe/362748628876?hash=item547580cf8c:g:IrsAAOSwkw1ddGkm
EXCELLENT! 1973 Dunhill BLACK BRIAR ODA 845 CLASSIC CANADIAN ENGLISH Estate Pipe | eBay - https://www.ebay.com/itm/EXCELLENT-1973-Dunhill-BLACK-BRIAR-ODA-845-CLASSIC-CANADIAN-ENGLISH-Estate-Pipe/362748628876?hash=item547580cf8c:g:IrsAAOSwkw1ddGkm