How can I tell if a tulip table is real?

Eero Saarinen tulip tables are beloved by interior designers worldwide, and there are some key things to look for to ensure your table is authentic. Examine the base of the chairs and table and confirm they're made from one piece of cast aluminum with no visible seams. Tulip tables have been crafted from various materials over the years, but never plastic. You can also turn the table over to look for a Knoll Inc. tag, though some vintage tables may not have this. On 1stDibs, you'll find a collection of authentic Eero Saarinen tulip furniture from some of the world's top sellers.