Buckets
At first I thought that they looked like the Challenger seats I used to have but I'm not positive. Mine did not have the upholstered back, but I see that some did. There seems to be a lot of variation in the way the pleats were made. Some vertical. Some horizontal. Some had a more curved pleat insert on the backs than others. Most of the Mopar ones I remember had a vertical seam that went through the head rest, but apparently not all.
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