Locating deposits
86%
Country: | Vietnam |
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Issue: | 30th Anniv. of Vietnamese Geological branch |
Date: | 1985-10-05 |
Print: | Offset and Lithography |
Size: | 41 x 30 |
Perforation: | 11¾ |
Emission: | Commemorative |
Format: | Stamp |
Face Value: | 1 Vietnamese đồng |