NOS parking brake boot I bought today. I also found a repop in Europe that looks closer to this one than the other one I bought earlier in the year - which is both too light in color and, several months later, smells like a place where old action figures go to die and get melted down.
This one is not anthracite but it's the right shape. And let's be honest: the odds of finding the original rubber mat are slim. It's more likely that I'll install carpet and this one will be a much closer match to the carpet, so I'm okay with it.