I consulted with pavel petrov. he said that I was mistaken this is not the copper coin described in his book as great mongols otrar mint.

我向巴维尔。彼得洛夫请教了，他说我说错了，这不是他书中描述的讹达剌打制的蒙古帝国铜币。

youdao

This film presents the most interesting facts on the history of Otrar and gives information on the safeguarding measures and conservation works undertaken by the team of Kazakh and international experts, under the UNESCO project.

UNESCO: Culture

Until the XV century, Otrar, together with the rest of the Great Ortar Oasis, represented the main urban centre on the marginal zone between southern towns and northern steppes, between settlers and nomads of Central Asia.

UNESCO: Culture