1999 Minerals. Issued July. No watermark. Sheet size: 4. Engraving: Impressor. S.A. Perforation: 13¼.
Republic of the Congo (also sometimes known as Congo Republic (Brazzaville) so as to distinguish it from the Democratic Republic of the Congo (DR Congo).
Minerals represented: Sulphur, agate, gypsum, and crocoite.
