Antique Chainmail Mesh Stamped

Antique Chainmail Mesh 1900's could be earlier..researched and found only one other like this one out there and see last pic. One Owner -grandmother Stamped Soldered Mesh Has a stamp in corner that I cannot read Kiss lock top close Believe to be Brass? Rings/Mesh Fits a cell and more Excellent condition for its age /some mark and inner frame can use tad of cleaning but that is not me forte(leaving it up to someone who knows what they are doing .No holes or tears. Approximately 6"Hx 8"L Chain drop 9" Beautiful Rare piece of history