There are several ways to tell the difference between a replica VP Globe and an authentic Verner Panton VP Globe. First, look at the materials used. An authentic VP Globe's metal canopy, steel chain and suspended reflectors are all chrome. Its outer shell is acrylic. If any of these materials are missing or seem cheap, it is likely a replica. Second, check for an individual number stamped into the lamp with Verner Panton's signature. Each authentic VP Globe should have its own unique number. Finally, look for a certificate of authenticity that corresponds with the number on the lamp. If you can't find this certificate or the number doesn't match, it's probably a fake.