5 Rials 1964

Yemen's Central Bank was itself barely established when this note entered circulation — the institution was founded in 1961, only three years before this series was issued, making the entire monetary infrastructure of the country effectively new. The Yemen Arab Republic had emerged from the 1962 revolution that deposed the Imamate, and the subsequent civil war, which drew in Egyptian and Saudi forces on opposing sides, ran the full length of this note's issued dates.

Bradbury Wilkinson printed for dozens of newly independent and post-revolutionary states during this period, and their New Malden facility handled the Yemen account without incident. Pick 2 is the second note ever catalogued for this issuer — there wasn't much before it.