Pieces of the Berlin Wall as souvenirs: Fake or the real deal?

It's been nearly 40 years since the fall of the Berlin Wall, yet you can still buy pieces of it in Berlin as souvenirs. But are they genuine?

source https://www.dw.com/en/pieces-of-the-berlin-wall-as-souvenirs-fake-or-the-real-deal/a-75789039?maca=en-rss-en-ger-1023-rdf