Some guitars fitted with this pickup
Tim Shaw developed a number of humbuckers for Gibson in the late 1970s/early 1980s, including the Magna II; again an exposed coil 'zebra stripe' cream/black unit, although the very earliest examples had black formers only. The Magna II was not widely used, and unlike the majority of better known pickups of the time, was not promoted as an upgrade/replacement part in Gibson literature. It was designed for use in the bridge position of the Gibson Victory MV2
(but not the MV10) as a contrast to the Velvet Brick
at the neck; it was overwound with taller formers (around 4mm taller than the Velvet Brick), no adjustable polepieces and with full magnet loading in both coils. For furtheer details of the Victory series pickups, see the Victory MV owners manual
The coils are mounted onto a "ferrous reflector plate for additional output" - stamped on the underside with Gibson's usual humbucker patent number 2,737,842 - this actually refers to an earlier bridge/tailpiece patent, rather than Seth Lover's humbucker, but was the number Gibson used for decades.
Dimensions (excluding mounting tabs): 2.60" x 1.39" x 0.78".