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The stamp inscription gives “brig-schooner” but she is rigged as a hermaphrodite brig, a term used in the late 18th centuries for a vessel that carried as many as 5 square sails on the foremast and a fore-and-aft mainsail with a gaff topsail. Numerous staysails between the masts and jibs to a long bowsprit. The type is now usually called a brigantine.

Somalia Republic 1998 300 SH SO sg?, scott?
Source: Aak to Zumbra a dictionary of the World’s Watercraft.