LOL sold out of all of them, that was fast! I'm a die-hard Dunhill fan, enjoy pretty much everything they make, but a lot of their blends are very similar to one or more others, varying mainly in strength. Standard-Mellow is Standard-lite, EMP is Standard-Ultralite. Aperitif is MM965-lite. Ye Olde Sign as I recall was sort of RY-lite. Dark Flake was very similar to DNR except in flake form vs coins, and DNR is smoother (DF is rather har) and a little sweeter but not by much. In a blind taste-test I would defy anyone to tell them apart.
221B despite the homage to Sherlock Holmes, is not an English blend. It's a VA-Bur and as I don't care much for burley I didn't like it the one time I smoked it.
But these blends have been off the market a long time and Dunhill has changed hands a couple times. Given the disappointingly inaccurate recreation of Baby's Bottom, Three-Year Matured and Ready Rubbed, I'm not getting my hopes up too much.