Local guitar tech said it's a t-bucker--but when opened up there's no Ts on the top--and the number isn't stamped into the back of the pickup, it's a decal (most of which is long gone, only the last 3 numbers are legible: "824."). It's the gold and black decal, although quite faded. Also offered to buy it from me for $100. But this guy is sketchy to the point where I'm not sure he's being honest when he says Hello.

The other curious thing is the cover has "Gibson" stamped into it. And it came like that, in the box. Thankfully my dad's a bit of an archivist.
My dad bought this in February 1974, and like I said he gave me the bill of sale with it.
So, any thoughts?
I don't know very much about Gibson Pickup history, and none of the resources online I've found show anything about this particular pickup. Part of me honestly thinks the little music store he bought it from made their own fakes back then and sold them under the Gibson name.
It sounds good, though, and it was free, so I'm not complaining--just curious.