17 September (United States of America ) within release Minerals Issue goes into circulation Se-tenant Minerals Block of 4 face value 4*29 United States cent
Se-tenant Minerals Block of 4 in catalogues | |
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Michel: | Mi:US 2315-2318 |
Stamp Number: | Sn:US 2703a |
Se-tenant is square format.
Also in the issue Minerals Issue:
Se-tenant Minerals Block of 4 it reflects the thematic directions:
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form