Help needed from you experts, please. This one’s got me beat! [решено]

Mounted as a brooch. It's large, and is that a date I spy, 1209AH ?

Composition: Silver (Not tested, but pretty sure)

Size:   29 mm dia.  /   2 mm thickness

Wt:    12.97 gms total. Say  approx. 12.5 gms without pin & clasp.

Edge: Vertically milled

No joy with ‘Search by Image’.

Looks like the Radhanpur coins, not in Numista catalog

https://www.zeno.ru/showphoto.php?photo=248882

Many thanks, Geison.

struck under Bismillah Khan, with reference to Queen Victoria ,1882, I have the other type under Zorawar Khan which reads as 100 Falus (= 1rupee)

https://www.zeno.ru/showphoto.php?photo=275583

Thanks for your post. After Geison pointed me in the right direction, I believe I have identified my coin as  Radhanpur KM29 Bismillah Khan rupee AD1881/AH 1298. However there are slight differences between mine and illustrations of this coin type that I have come across. The most noticeable is the positioning of the date, 1881 on the obverse, which on mine is more like the position of the 1880 date on the KM27. Other differences are the grouping  and positioning of the small round dots. I wonder if these differences can be down to ‘artistic licence’ in the making of a replacement die, or am I missing something (I probably am!). Can you shed any light, please?

You have to take into account that the dies are hand cut and variations will occur, your coin has the same legend but some parts are quite peculiar as though the die cutter could not read or write and put bits of a words in odd places. Most odd to me is the word Khan which  I ringed in red, reading from the right it's 2 letters  would be side by side but your coin has the N above the Kh

This one https://www.zeno.ru/showphoto.php?photo=136702 is more like yours for the pin side but the obverse has a completely different layout