egal...
 Disasters induced by geophysical effects
Earthquakes Tsunamis
 1957/58 : IGY-Campaign
IGY: International Geophysical Year
 Congresses of Geophysical interest
IUGG: Int.Union Geodesy Geophysics Other Congresses & Meetings
 Geophysically relevant cruises of ships
Cruises of Ship Polarstern
 Geophysically relevant surveys in polar regions
Arctic Antarctica


  found 3 countries with filter 1111,x,x: Seismology.Seismograms

General Geophysics on Stamps - Allgemeine Geophysik auf Briefmarken - Géophysique sur les timbres - Selected topic(s): Seismology.Seismograms

China 2013

Stamp showing.....
1zzz


Categories1: Disasters.Earthquakes,Seismology.Seismograms


Attributes and External Links:
http://www.wnsstamps.post/en/stamps/CN035.13.html
2013_Lushan_earthquake

Croatia 1998

Cover showing.....
5zzz


Categories2: Seismology,People.AndrijaMohorovičić,Seismology.Seismograms


Attributes and External Links:

GDR 1980

Stamp showing.....
4zzz5


Categories1: Seismology,Seismology.Seismograms


Attributes and External Links:

GDR 1980

4 Stamp showing.....
5zzz5


Categories2: Gravimetry,Seismics,Seismology,Seismology.Instruments,,Seismology.Seismograms


Attributes and External Links:

Philatelic Objcts with topic: Seismology.Seismograms on 09.05.2021