See below description from Ebay. Is this accurate regarding the finish or is he just biggin it up?
1995 Fretless Stingray. This is pretty much a standard Stingray fretless 4 (with 3 EQ) .. except for the finish - The finish is a satin Natural finish that was, apparently, originally requested by Paul McCartney for his EB Stingray – it’s a very nice feeling / playing bass and a much more mellow sounding MM then the standard ‘gloss’ versions: much better for fretless and enabling those Palladino tones with ease. The Neck and fingerboard have almost no wear at all. Comes with a new set of DR Sunbeams and the original Musicman case.
1995 Fretless Stingray. This is pretty much a standard Stingray fretless 4 (with 3 EQ) .. except for the finish - The finish is a satin Natural finish that was, apparently, originally requested by Paul McCartney for his EB Stingray – it’s a very nice feeling / playing bass and a much more mellow sounding MM then the standard ‘gloss’ versions: much better for fretless and enabling those Palladino tones with ease. The Neck and fingerboard have almost no wear at all. Comes with a new set of DR Sunbeams and the original Musicman case.