That would be once in a blue moon. I think you have a far better chance of finding something (typically G81-1900/7000) on your side of the pond. "Serious" keyboards have been almost exclusively light-colored here.
I agree, most Cherry boards don't come in black here. Even getting a current generation black G80 with English layout was hard.
In regards to the boards I got yesterday, some production dates:
G80-1212: 20th April 1989
G80-1000: 1x August 1990 (can't read the 2nd digit, rubbed off)
G80-3019: Unknown, this one has a fancy sticker with lots of hand written numbers on it inside. Maybe this has to do with the OEM customization.
PS: Should I move any further discussion regarding these boards (i.e more roll over tests, etc) to a more fitting topic? Maybe your "dating cherry keyboards" entry keyb_gr?
PPS: Maybe we can rename this topic to eBay Germany or something? Its not really only about Cherry anymore.