Robert Koch (Free City of Danzig 1939)

29 April (Free City of Danzig ) within release Portraits of Mendel, Koch and Röntgen goes into circulation Stamp Robert Koch face value 15 Danzig pfennig

Stamp Robert Koch in catalogues
Michel:	Mi:FSD 307
Polish Stamps Catalog (Fischer):	Pol:FSD 305

Stamp is square format.

Also in the issue Portraits of Mendel, Koch and Röntgen:

• Stamp - Gregor Johann Mendel face value 10;
• Stamp - Robert Koch face value 15;
• Stamp - Wilhelm Conrad Röntgen face value 25;