Queen Victoria state rupee, unusual tiny O under letter A in the word state

Subject: Unusual Bikanir State 1 Rupee Coin with Tiny "O" Under 'A' in "STATE" – Seeking Info

Hello,

I’m reaching out to share a very unusual variety of a Bikanir State 1 Rupee coin (Queen Victoria era) and would appreciate any insights from fellow collectors or experts.

Details of the Coin:

The coin features the standard "BIKANIR STATE" inscription.

Under close inspection, there is a tiny, clearly defined "O" located directly under the letter "A" in the word "STATE".

This mark appears intentional and struck, not post-mint damage, wear, or dirt. It's perfectly aligned and formed.

I have searched major databases (Numista, Zeno, PCGS, etc.) and haven’t found any reference to this variety.

The coin is mounted on a historic coin chain with other colonial-era coins (Travancore, British India, etc.), which suggests it may have had ceremonial or symbolic use.

Photos attached:

Clear close-up of the tiny "O" under "A"

Full view of the coin

The complete charm chain it’s attached to

My questions:

Has anyone seen this die mark or variety before?

Could it be a control mark, mint signature, or part of a special issue?

Could the chain it’s part of offer clues to its purpose (e.g., ceremonial, presentation piece, etc.)?

Any information or direction to a die variety catalog or princely state coin expert would be greatly appreciated.

Close up it looks uneven, more like a punch mark than a die struck letter, 

Honestly I totally appreciate you taking the time out and checking for me however I don't think it's a punch mark. I have 20yrs of experience and I can easily tell the difference between a dia mark and a munch mark. I honestly believe it is a die mark.

But once again thankyou for checking. 

You can see the coin clear in your hand but close up is blurred on screen . If you want then send me hi res sharp clear close up photo's and I'll put it on zeno, the worlds biggest coin database, to see what comments are made

Hey iv tried my best. To get a good pic my hands are a lil shaky hope this will suffice 

 New picture cropped 

Is it actually an ‘O’? It is hard to say from a picture, but imo it can be a damage too.

Thankyou so much for all the support really appreciate it. I hope we are able to get some absolute answers.

I have brightened it up, click to enlarge and a close up does not show an O, it's not a complete circle