The racquet was a paint Job. It was Pete's original Pro Staff 85 with the paint job of the Pro Staff 6.0 Pete Sampras with the dual tapered beam. The actual real Pro Staff 6.0 95 dual tapered beam that was sold to the public had glossy finish. Pete used the Pro Staff 85 with the green, silver and black cosmetics for a short time and then went back to his St. Vincents and did not have a Wilson contract for a while.
Interestingly the Pro Staff 85 with the paint job of the Pro Staff 6.0 95 dual tapered beam was sold in Japan. Just like you can get now in Japan the Original Pro Staff 6.0 85 with the paint job of the Pro Staff Classic.
I also knew a guy from Japan that I met once that used the Pro Staff 85 with the green, black, and silver paint job from the Pro Staff 6.0 95 dual tapered beam.
Here are some photos of the Pro Staff 85 with the paint job of the widebody Pro Staff 6.0 95 dual tapered beam.
This is what Pete used at Roland Garros in 1991.