A while back, I purchased some Semi-Oriental 456 from Leaf Only. I also enjoyed it very much, but it is a little to harsh to smoke straight. But adds a nice boost to pipe blends. I also inquired Leaf Only about which particular strain 456 is, but they did not know. Leaf Only does provide some good whole leaf tobaccos, but, unfortunately, Leaf Only will not provide information in regards to a specific varietal. They just refer to their tobaccos in a general sense, such as Burley, Virginia, Dark Air, etc. They most likely cater to clients who do not really care about specifics as we aficionados do.