GIBRALTAR: 2 Pounds (1999 AA) in Bi-Metallic, commemorative coin with Greek subject for the Labours of Hercules. Obv: Crowned head of Queen Elizabeth. Rev: Hercules and the Mares of Diomedes. Inside slab by NGC "MS 65 - LABOURS OF HERCULES, MARES OF DIOMEDES". (KM 762).