Summary: Prominent spherical obsidian, verdigris or contamination striking Abe’s head, neck, or torso – the mark of an imagined projectile. The primary marking on the Cent must be the assassin regardless of other spots. While chemically akin to corrosion, contamination or paint, its singular placement transforms decay into narrative: a headshot, a hit, a story encoded in copper.
Color: Ranges from dark obsidian to silver-grey or verdigris, sometimes edged with red tones where oxide and contaminant converge. The form has to be circular, and vividly isolated against the portrait field.
Version 1.0