50 Rials 1969 'dark panel' issue

The 'dark panel' designation separates this from an earlier printing of the same P#85 type, where the tint panel on the reverse was noticeably lighter — a production variation Harrison & Sons made during the note's run that collectors have since treated as a distinct subtype. Amouzegar's name appears across two signature combinations, pairing first with Samil and then with Farmanfarmaian as the governorship changed, which means both pairings fall within a fairly compressed window in the late 1960s.

Farmanfarmaian was removed from his post after the Shah grew dissatisfied with his handling of oil revenue policy — his tenure at Bank Markazi ended abruptly in 1971.