Identification help – Small silver coin (0.46 g) – Cyrillic script

I’m looking for assistance in identifying a small silver coin weighing 0.46 grams, irregularly shaped and inscribed in Cyrillic script. It resembles Russian wire kopeks or possibly medieval Balkan issues, but I have not been able to match it with any known type.

This is probably Feodor Alexeyevich: https://en.numista.com/catalogue/index.php?e=russia-empire&r=&st=1-2&cat=y&im1=&im2=&ru=1564&ie=&ca=3&no=&v=&a=&dg=&i=&b=&m=&f=&t=&t2=&w=&mt=&u=&g=&c=&wi=&sw=

This is the exact type: N#111908