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John-Oliver Breckoff Beratungsdienstleistungen
Sole proprietorship
Lettenmattstrasse 33
8903 Birmensdorf ZH
Switzerland

Responsible for content

John-Oliver Breckoff
Lettenmattstrasse 33, 8903 Birmensdorf ZH, Switzerland

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Image credits

Beinecke Rare Book & Manuscript Library (About me, My Qualifications): photo by Michael Kastelic, Wikimedia Commons, licensed under CC BY-SA 4.0; cropped, desaturated and faded.