I'm currently busy with the garden and the drought that hit us.
I often finish work after ten at night, I even set up the floodlights.
So I don't have much time to devote to coins.
Today it's too hot 38 degrees Celsius I only leave the house when the sun goes down.
So I decided to check my coins and find one that I haven't written about . I'll have to mark them so I don't repeat myself.

Today I bring you a 5-mark coin with the image of Max Pettenkofer.
I think I bought this coin, but I'm not sure.
Who was he?
I remembered that he was a German chemist and hygienist.
So I had to research the character and work again.
Luckily there is a lot of information about him, so it is easier to research.

Max Joseph von Pettenkofer(December 3, 1818 – February 10, 1901).
German chemist and hygienist ,from the province of Bavaria.
Founder of scientific hygiene. He studied natural sciences and medicine in Munich. He introduced a new procedure for the detection of arsenic and for distinguishing arsenic from antimony. In 1852 he was appointed full professor of medical chemistry at the University of Munich, and in 1879 he founded the Hygiene Institute there, where he applied scientific methods to research the hygiene of water, soil, clothing and housing and their influence on health and the occurrence of infectious diseases.He was best known for his establishment of hygiene as an experimental science, and was also a strong advocate for the establishment of hygiene institutes in Germany.
Commemorative issue:
150th Anniversary of the birth of Max von Pettenkofer
Obverse:
Stylized eagle with denomination of 5 above and mintmark below
Reverse:
The face of Max Pettenkofer facing 3/4 left, dates below
Edge:
Smooth with inscriptions
Lettering: HYGIENE STREBT, DER ÜBEL WURZEL AUSZUROTTEN
Translation: Hygiene Aims to Reduce the Evil Root
Engraver: Hans Karl Burgeff
Issuer: Federal Republic of Germany
Ruling authority: Federal Republic (1949-date)
Type: Non-circulating coins, Commemorative coins
Year: 1968
Value: 5 Deutsche Mark (5 DEM)
Currency: Deutsche Mark (1948-2001)
Composition: Silver (.625)
Weight: 11.2 g
Diameter: 29 mm
Thickness: 2.07 mm
Shape: Round
Technique: Milled
Demonetized: 31 December 2001

Thanks for reading
Until next time
Stay healthy
