Knockoff Folke Ohlsson Highback Chair? Or Something Else?  

Hi all, I recently came across this chair, which is obviously not Folke Ohlsson's Profil for Dux, as it continues to slope down in the back and the back legs are attached to the chair body instead of a back wooden crossbar. Does anyone know anything about it? Is it a knockoff? I found a nearly identical chair listed on this "sparklebarn" website as Folke Ohlsson, but they didn't cite their sources- I don't know if they're wrong or if they know something I don't. (Hopefully posting this link is allowed? I will take it down if not). I looked through the Dux material I could find on this site last night, but didn't see it.

Thanks!