08 October (Sudetenland ) within release Vratislavice nad Nisou (Maffersdorf) goes into circulation Stamp Jan Evangelista Purkyně, overprinted face value 1 Czechoslovakian koruna
Stamp Jan Evangelista Purkyně, overprinted in catalogues | |
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Michel: | Mi: DR-SL MA 121 |
Stamp is vertical format.
Blackbrown Handstamp "Wir sind frei!" and swastika on Mi:CS 378Also in the issue Vratislavice nad Nisou (Maffersdorf):
Stamp Jan Evangelista Purkyně, overprinted it reflects the thematic directions:
Natural history is a domain of inquiry involving organisms, including animals, fungi, and plants, in their natural environment, leaning more towards observational than experimental methods of study. A person who studies natural history is called a naturalist or natural historian.
A scientist is a person who researches to advance knowledge in an area of the natural sciences