Possible Hyderabad state bow type coin rare type

Gwalior fort mint not yet listed?

What makes you think it's not Hyderabad?

the afzal ud daulah paisa only has a bow over the shah symbol none that I know have it over the persian (b) symbol like the one in the photo I have shown

In Jan Lingens book , coins of the Sindhias there are diagrams of 9 variations of the bow but non like yours where an arrow does not protrude from the bow, there is always the very strong possibility your coin is a Kachcha paisa, a local  state copy

This is another possibility of what the reverse looks like the arrow mark may also be worn away can you please show the references to the sindhia bow paisas you had described this may be similar to this post on zeno by asm but the (shah) or possible (b) portion is off flan  https://www.zeno.ru/showphoto.php?photo=143766  

Here is the page from the book, you can see which mint has each type of bow

i had seen a similar coin with no arrow protruding  and it is very similar , however now it is sold. Do you know of any unique bow paisas minted by Hyderabad state?

is the coin possibly of one of the nizams whoose coins were not doccumented as well?