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Sonnblick Observatory 75th issue of Austria

  • Colnect-136-469-Observatory-Sonnblick-75th-anniversary.jpg
Short desc: Sonnblick Observatory 75th

Issuer: Austria
Date: 8/29/1961
Occasion: Sonnblick Observatory founding
Number/Year: 75


Consists of 1 stamp: (See stamps as list)

1.80s blvio d=Sonnblick Observatory

All are perf=14.5x13.75


Record of changes