US stamp sells for a record-breaking $2m November 13, 2023 Known for its rarity and unintentional printing error, the Inverted Jenny stamp dates back to 1918. Source: US stamp sells for a record-breaking $2m Updated: November 13, 2023 at 9:15 pm Tags: US ◀ Nations gather in Nairobi to hammer out treaty on plastic pollution US Supreme Court announces first formal ethics code ▶