1/2 Tumân - Nāṣer al-Dīn Qājār

Nāṣer al-Dīn Shāh's reign of nearly half a century was the longest of any Qājār ruler, and the coinage reflects that duration through a bewildering succession of mint cities, regnal year combinations, and die varieties. Tehran, Tabriz, Isfahan, Mashhad, Shiraz, and smaller provincial mints all struck this denomination at various points, with output quality varying sharply between them. Provincial dies were often cut locally, producing letter forms and spacing that diverge considerably from capital mint production.

The 1.40g standard was established following monetary reforms pressed in part by the economic disruptions of mid-century trade imbalances with Russia and Britain.