Tulip table set with dual cushion chairs?  

Hi all,

I came across a pretty curious-looking tulip table set today...

I've seen many of these sets and Knoll-a-likes in the past but never one with seat cushions like this.

Besides the basic one cushion Knoll-style, I've seen them with a full seat cushion and likewise with no cushion at all.

No maker marks that I could find on the piece or the fiberglass chairs, but the patina and hardware tell me it's certainly a vintage piece.

I came across it in Canada, if that help identification.

Can anyone shed some light on this for me?