50 Tomans

The Imperial Bank of Persia was a British-chartered institution, incorporated in 1889 under a concession granted by Naser al-Din Shah, giving it the exclusive right to issue banknotes throughout Persia. That monopoly was deeply resented by Persian merchants and nationalists almost from the start, and opposition to it became a recurring flash point during the Constitutional Revolution of 1905–1911.

The 50 Toman denomination was effectively outside everyday commerce — a sum representing months of wages for most Persians, which means surviving examples were almost certainly held by foreign merchants, government officials, or the bank's own branches rather than passing through ordinary hands.

Bradbury Wilkinson printed the full series under contract, working from intaglio plates out of their New Malden facility.