This is wrong.
The only guitar Gibson threatened to sue over were the Ibanez LP copies and they changed their headstock before the case made it to court.
here, I searched it for you
The True Story Behind Japanese 'Lawsuit' Guitars – Soundfly
Yup, read all that last time you posted it.
Still, Serial number comes up 67 without "Made in USA"
859001 to 895038 1967
897000 to 898999 1967 or 1969
with "Made in USA"
per: Vintage Guitars Info - Gibson collecting vintage gibson guitars (guitarhq.com)
Assuming that it is a repurposed SG neck, and I too think that is the case here, I'd say a 69 neck.
3pc neck started in 69, I personally can't see the logo clearly enough from the pics to be certain, but I don't see a dot over the "i" in Gibson as with 69's.
Heel design most closely matches 69...
I think maybe it should start with: What year is it.
Serial # 889xxx
1953-1961: Unique solidbody electric guitar "inked" serial numbers.
1961-1969: 4,5 or 6 digit peghead stamped serial number for all models, no MADE IN USA stamped below.
1969-1975: 6 digit peghead stamped serial number, MADE...
Vintage Guitars Info - Gibson collecting vintage gibson guitars (guitarhq.com)
Gibson Solidbody instruments 1952 to 1960:
No number: 1952 to early 1953
ink stamped numbers in back top of peghead. First number denotes last digit of year, followed by a space and 4 digits, or no space and 5...
Gibson definitely make all of the hardware in Black.
How much it costs and availability I have no idea.
But they use it when they want to.
A recent purchase of mine below.
2007 SG Special GOTW #32 by DJGranite posted Apr 21, 2021 at 2:45 PM
Blacked out from the factory so they do use Black...
To the best of my knowledge Gibson is a "Nitro" company.
Of course most companies experiment with new products and alternative methods and the GOTW series shows this in action, small batches, different from the normal models in various ways.
I guess anything is possible, so really I don't know...