50 Arizona Goldback - Alpha Edition (α) | Aurum Gold Foil Note (24k)The Arizona 50 Goldback honors the discovery of Pluto in 1930 at Lowell Observatory in Flagstaff, Arizona. The artwork personifies the virtue Curiositas, or Curiosity, through a young woman gazing skyward with wonder. She holds a book embossed with Plutos symbol in her right hand and a telescope in her left. Behind her, the iconic observatory dome rises under a star studded sky. A vintage newspaper clipping on the table recalls the headlines that once