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mineral
s (1997 China, ROC)
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mineral
s (1998 Armenia)
minerals (1997 Ecuador) design type
Short desc: minerals (1997 Ecuador)
Things in this design type:
taxon
mineral
Used by 5 stamps:
(See all uses as list)
Ecuador 10/6/1997 400s issue=International Mining Congress 1997 d=quartz (1997)
Ecuador 10/6/1997 600s issue=International Mining Congress 1997 d=chalcopyrite (1997)
Ecuador 10/6/1997 800s issue=International Mining Congress 1997 d=gold (1997)
Ecuador 10/6/1997 2000s issue=International Mining Congress 1997 d=Silicified wood
Ecuador 10/6/1997 2600s issue=International Mining Congress 1997 d=pyrite (1997)