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International Surveyors Congress 1981 issue of Switzerland
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Short desc: International Surveyors Congress 1981
Issuer: Switzerland Date: 3/9/1981 Sort position: 4 Occasion: XVI International Congress of Surveyors Consists of 1 stamp: (See stamps as list) 80(c) d=theodolite & yardstick All are perf=11.5 |
