May I ask which magazine it was in? Unfortunately thanks to this site and others, rumors have begun to take over and spread rampantly about the Langshans. Mostly that ridiculous purple rumor. People are "preying" on those that have heard these rumors and haven't checked them out. They'll charge anywhere from $100-$200 per pair for junk birds that are small, puny and don't lay the egg color that has been rumored.
In the UK, there are different versions of Langshans. There is the German Langshan, Croad Langshan, and Australian Langshan. There was also a "Modern" Langshan that is thought to be extinct now. The names, in this instance, are to help separate which type of Langshan they are. But, as we only have one type of Langshan in the US, they are simply known as "Langshans."