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 2 countries with filter 1111,x,x: Geothermics.HotSprings

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

Algeria 2017

Thermal bath
1


Categories1: Geothermics,Geothermics.HotSprings


Attributes and External Links:
UPU/WNS:DZ003.17

USA 2012

Stamp showing.....
1zzz


Categories2: Geothermics,Geothermics.HotSprings


Attributes and External Links:
http://www.wnsstamps.post/en/stamps/US118.12.html

Philatelic Objcts with topic: Geothermics.HotSprings on 25.06.2021