Colnect-3301-830-Eotvos-Torsion-balance-and-globe.jpg
Source: Colnect
  • 1571_Geophysical_10.png
  • Colnect-812-330-E%C3%B6tv%C3%B6s-Torsion-Balance-and-Globe.jpg
Issued by: Hungary
Function: postage
Date: 3/14/1959
Issue: IGY
Denom: 10f
Color: red purple & black brown
Design: Eötvös Torsion Balance & globe
Watermark: stars (Cuba)
Perf:
Catalog value:

In collections: used (Stan Shebs)

External links:
Colnect 178229..ophysical_Year
Colnect 613064..ophysical_Year