BEING RESEARCHED - Imperial Russian Military Uniform Button "BN" - NOT FOR SALE UNTIL IDed

This is an unidentified Imperial Russian military uniform button in brass reading BИ.

Circa Imperial Period.

Approximately 7/8" in diameter.

Brass.

Loop.

S. PETERSBURG and maker information.

This is from an unidentified collection which we will be listing more of over the next few months. Item will not be sold until it is identified. VAX10 LX9/11

7- (Very Fine-): The button shows some light to medium wear and tarnish.

As with all my artifacts, this piece is guaranteed to be original, as described.