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Helmholtz

  • DDR-Briefmarke_Akademie_1950_10_Pf.JPG
Short desc: Helmholtz


Things in this design:
person Helmholtz (syn. of Hermann von Helmholtz)

This design is used by one stamp:
German Democratic Republic 7/10/1950 10pf dkgraygrn dt=scientists (1950) wmk=mult flowers






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