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Geophysics design type

  • Colnect-1981-048-Gravimetry.jpg
  • Colnect-1981-049-Bohrlochmessung.jpg
  • Colnect-1981-051-Seismic.jpg
  • Colnect-1981-052-Seismology.jpg
Short desc: Geophysics




Used by 5 stamps: (See all uses as list)

German Democratic Republic 11/11/1980 20pf d=Gravimetry
German Democratic Republic 11/11/1980 25pf d=Bohrlochmessung
German Democratic Republic 11/11/1980 35pf d=Seismic
German Democratic Republic 11/11/1980 50pf d=Seismology
German Democratic Republic 11/11/1980 130pf




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