Dear Abhinumis, my feeling is that you may call Mirath a scarce mint for Akbar's coppers.

I have gathered the copper coins of Akbar from different data sources (Lahore museum / Calcutta / Lucknow and Zeno ) with a total of 1267 coins; that gives for few mints :

Ahmadabad (72 coins) : 5,68%

Ajmer (60 coins) : 4,74%

Alwar ( 11 coins): 0,87%

Bairata 54 coins) : 4,26%

Delhi ( 142 coins): 11,21%

Dogaon (86 coins): 6,79%

**Mirath **(1=zeno): **0,08%**

Narnol (169 coins): 13,34%

Urdu Zafar Qarin (82 coins): 6,47%

Even if catalogues of mughal coins are recent editions, that may give a good idea of scarcity of coins...