Arredoluce three lamp question. please help  

hi. I just purchased a three arm lamp by arredoluce. I didn't take long enough time inspecting the item, because I didn't suspect it could be a reproduction. but looking around now, it seems like there are reproductions of the model, and I worring mine might be one of them. Is there anyway to tell for sure if it is one? anyone who know the answer, please help me. If it is a repro, I need to return it as fast as possible. I was told it was made during 50's. the body and arm part is chrome, the base is also chrome. Thanks.