Toilers Party of the Iranian Nation
The Toilers Party of the Iranian Nation (Persian: حزب زحمتکشان ملت ایران, romanized: Ḥezb-e Zaḥmatkašān-e Mellat-e Īrān; Zaḥmatkašān means proletariat) was a social-democratic political party in Iran. Initially a member of the National Front, they pledged support for the nationalization of the Iran oil industry and opposed Tudeh Party.
Source: Wikipedia — Toilers Party of the Iranian Nation (CC BY-SA 4.0)