975-978 Civil Defense; Swiss Alps; Swiss Air Rescue; Environmental Protection

Stock:
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Date of Issue September 17th 1970; Special-postage stamps

- Signet of the Civil Defense Organization,

 

- Spannorten (3198 meters high) in the Canton of Uri,

 

- Alouette III Turbine Helicopter

 

- Symbols for "Clean Air", "Pure Fire", Fertile Earth "

 

and "Pure Water"

Mint never hinged, wet adhesive