well..i haven't seen a C64 with black keys..NEVER..Dark brown - yes, but black!? Are You sure?
Please do not rely on the color of the keyboard..Commodore is well known company who used all parts, they had on the moment..
Meet patched 1541drive with PCB 1540050:

it is original Commodore patchwork!
Or C128.. It turned out that CP/M carts doesen't autoboot, then all C128 boards was patched by hand like so:

And even this:

Yes, it is not fake!!(someone had a bad day, and mounted the colours in wrong order, the rainbow on the badges looks totally wrong, but in doesen't stopped Commodore to use them

making those models rare
So, as You see, nothing was thrown away, just a little bit of patchcables, aaaand voila...sold!

So come on.. Don't wonder if You see a breadbin with white keys...
