Kem Weber Chairs?  

I was given these chairs about 25 years ago from a woman who was an architect friend's client - she no longer wanted them. I have only seen them once before in a story in the NYT style section. I recently found info that indicates they are from the 1930's and may be K.E.M. Weber. I have had two different dealers look at them and one said they are KEM Weber and the other said he wasn't sure. They were reupolstered and other than the chrome having some tarnished spots they are in very good condition. How can I tell if they are KEM Weber? Any thoughts?