Have rear CC seat, type unkown, who knows

Hello,

Since November I have a 1990 CCSkiN. Now waiting for April to start. Delivered without rear seat. We dont use it, so no problem.

Availeble was a non fit rear seat, Too wide, took it for free. Width approx 69 to 71" see pics
http://photobucket.com/albums/e327/wakeboatphoto/

My 1990 CCSN should fit a 66 to 69", bit tapered, wide rear seat.

Anyone knows for what type te seat on the on the pic is, for sure it doesnt fit my 1990 CCSkiN.

Hope to swap it, but have to know what type it fits.

The upholstery is poor, lots of cracks.

Thanks for advise.