It seems you're looking for a of the Kosmos Chemielabor C 3000 along with its manual (Anleitung) as a PDF, specifically mentioning "19" (possibly a version, page, or search tag).
The manual is structured into roughly 24 chapters that transition from basic principles to complex chemical systems. kosmos chemielabor c 3000 anleitung pdf 19
If the manual is not listed (older versions are sometimes removed), contact Kosmos customer service. They are known to email PDFs to registered owners. Explain you need the "19er Ausgabe" (19 edition) or "Anleitung von 2019". It seems you're looking for a of the
Here's a concise review of the set, followed by guidance on the manual. specifically mentioning "19" (possibly a version