Good Questions: Identify an Authentic Platner Table from a Fake?

I recently purchased a Knoll Platner looking coffee table on Craigslist for $40. Are there any identifiers on the authentic table to let me know if it’s an original Knoll? The table appears to be old, but it’s in good condition — Nickel finish and it's solid. Thanks!

(Note: Include a pic of your problem and your question gets posted first. Email questions and pics with QUESTIONS in subject line to: newyork(at)apartmenttherapy(dot)com)

Either way, it's a good deal! (If it IS a real Platner table it was an incredible deal!) Anyone?