50 Rials - Mohammad Rezā Pahlavī

Bank Melli Iran had been issuing notes since 1932, but the early 1950s brought acute political pressure that complicated everything — this note circulated during the period surrounding Mossadegh's oil nationalization crisis, when public confidence in Iranian institutions, including the central bank, was sharply contested. De La Rue's London production continued uninterrupted through those years, insulating the physical printing process from the domestic turbulence.

Pick 56 belongs to a series that ran across several denominations with minimal design revision, making date and signature combinations the primary differentiators for specialists. The watermark remains the only security feature — no security thread, no latent image.