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30th Anniversary of Geological Service issue of Vietnam
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Short desc: 30th Anniversary of Geological Service
Issuer: Vietnam Date: 10/5/1985 Occasion: Geological Service (Vietnam) Number/Year: 30 Consists of 2 stamps: (See stamps as list) 1d vio<bl d=Locating deposits 1d purbrn&yelgrn d=Geological research by airplane |
