Judging by his headgear and telephone, it's most likely the post-revolutionary period.

从他的帽子和电话配备来看，这很有可能是大革命后期。

youdao

A young Britain designer has invented a revolutionary folding bicycle. The bicycle will stop thieves in their tracks because it can be wraped around a lamp post.

英国一位年轻设计师发明了“弯曲自行车”，它能够很好地防盗，因为该自行车可以折叠捆绑在街道路灯杆上。

youdao

But he admitted there "was a battle about the new post revolutionary model".

BBC: Clouds gather over bellwether Tunisia

Not only do these connections give the Iranians the ability to influence the policies of post-revolutionary allied regimes.

CENTERFORSECURITYPOLICY: The new Middle East

The reformers are now dredging up the ugly past to discredit both Mr Rafsanjani and, more significantly, post-revolutionary Iran.

ECONOMIST: Iran