1/2 Dollar Frigate Bird

Nauru's titanium issues occupy a genuine niche in modern numismatics — the metal's resistance to corrosion and its distinctive grey surface tone make it a practical choice for a Pacific island nation whose collector coinage program has always leaned toward the unconventional. Titanium strikes require harder dies and shorter production runs than standard base-metal issues, which tends to keep mintages low by default rather than by marketing decision.