This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
BAYER Pharmalabor OG. Pharmakologisches Laboratorium in Elberfeld Obergescho Ernst Arthur Eichengrn August in Aachen Dezember in Bad Wiessee scan from Meilensteine Bayer Teil Bayer PDold Arthur Eichengrn ImageNote Eichengrn ImageNoteEnd
Page 2023 Free-images.com. All images are Public Domain