Possibly the seat covering was repalced before you bought it. This is
quite common if there is a side airbag in the seat that detonates.
Or maybe it ripped or got a burm hole in it.
1991 Pontiac Bonneville LE
3800 V6 ( C ), Black/Slate Grey
~~~The Former Fleet ~~~
89 Cavalier Z 24 convertible
78 Holiday 88 coupe
68 LeSabre convertible
73 Impala sedan