1⁄11 Réal Countermarked 4 maravedis, key

Jamaica had no mint of its own during the Spanish colonial period, and small-denomination copper coinage was chronically short across the Caribbean. This piece began life as a Spanish maravedis, later countermarked for circulation in Jamaica — a practical administrative fix that avoided the expense and logistics of shipping freshly struck coin from Spain or Mexico. The "key" countermark is the device associated with this authorization, though the precise issuing authority and exact date of application remain subjects of specialist debate.