knockoff or misattribution ?  

I found a very nice "Robert Sonneman" lamp in great condition and in its original box. I never picked a lamp in its original box before! Usually attributed to Robert Sonneman for Kovacs, the one i got is actually very modern... the company on the box was founded in 1970 according to wiki. I looked at the close-up pictures on 1stbids sellers for the same lamp, it looks 100% the same. Knockoff or misattribution?
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