03 October (Sierra Leone ) within release Minerals goes into circulation Stamp Diamond face value 2½ Sierra Leonean cent
Stamp Diamond in catalogues | |
---|---|
Michel: | Mi: SL 496 |
Stamp Number: | Sn: SL 397 |
Stamp is square format.
Also in the issue Minerals:
Stamp Diamond 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