The G3 pickup was a simple single coil around a magnet, both embedded in clear resin. Thanks to the translucent covers used in early examples, we can see exactly what is inside.
These are just the auctions - there are more Buy It Now Gibson Basses and Gibson Bass parts in Ebay stores here
These are just the auctions - there are more Buy It Now Gibson Basses and Gibson Bass parts in Ebay stores here