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He returned to Iran in 1870 and settled in Tabriz and entered Mozafar al-Din Mirza court. From there he was nicknamed "Khani". He then came to Tehran on the Alaoddole (Ferdowsi) street, east of the square and set up The workshop.
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Sorokin was at this time a photographers close to Nasir al-Din Shah, and it is said that the Qajar king was very interested in his court portraiture and portraiture.