You might be able to find one on ebbaayy, but it may take a while.... if ever.
Keep in mind that the vinyl on a nos seat will be old, so it may develop splits or cracks at the seams. perhaps?
Alternatively, you could look into having yours recovered. Replacement covers often times have the stock pattern. I got a nos Travelcade cover off of ebbaayy & the pattern is virtually identical to stock.
