Unknown period.
Material: steel
Sold on ebay.
Source: [1]
Such standards are called Alam in Iran. Although steel, which is an alloy of iron and carbon, is a metal essentially used for the production of weapons and armour, in the Safavid period it was often used as a raw material for etching plates and openwork standards. It is claimed that this item belongs to Safavid period, but I think it was made much later in Qajar or Pahlavi era. Nowadays, they are mostly used in parades during Ashoura Festival.
