Risom Chair  

I recently acquired the swivel base office chair shown in the pictures. It has a tag on the bottom marked "Risom Furniture Company, Danielson, CT." It's a very comfortable, heavy duty chair, and the style suggests is was made in the 1970's. I'm trying to find out if it was, indeed, designed by Jens Risom. All that I've read about him is that he helped found Knoll early on, then formed his own company, Jens Risom Designs. I've found nothing about the Risom Furniture Company. Can anyone shed any light on this chair, or the Risom Furniture Company? Was this chair likely designed by Jens himself?