I got these two from my local Kreissparkasse today. They are from a roll the teller had opened a few minutes earlier.
We all know that coins should usually not be cleaned, or by cautious and experienced collectors only. Well, in this case we need to be particularly careful. Just read in a German forum that somebody who had also picked a loose piece up at a local bank, wanted to get rid of the bank clerk's fingerprints ... and now the color is gone.

He had used Softasept, which is basically alcohol (for disinfection) and which had worked for him before, with color coins from other countries.
Not in this case though; the black-red-gold is gone. He also posted an
image of his "monocolor" coin; not sure though whether non-members can see images over there. Anyway, stay away from alcohol.

Christian