Set of two, pulled from my MIJ Geddy Lee Jazz Bass.
$70 + actual shipping in the US. PM me your zip code for shipping costs.
These are the same as the ones shown here in the upper left: Guitar Parts Resource
According to other forum members, these are American made and were used in the older Marcus Miller basses, and the American 62 Vintage Reissue bass. Also, they are apparently no longer using these in the newer, Mexican-made versions of the GL or MM basses.
The price is for the pickups and 8 attachment screws only. If you need a GL plate/electronics/knobs/pickguard, I have those for sale in a separate ad.