Who does this hallmark belong to? A shield with intials M S

I can not find anything on who the maker of this is. It was in a box of random items at an auction.

The hallmark looks like a shield (reminds me of the salvation army badge) with a “M” and then the worlds “silver on copper” and then an “S” on the other side.

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Hi there and thanks for joining us. Your item is American, silver palted, and made by the Modern Silver Mfg. Co. Inc. of Brooklyn, NY, circa about 1950.

Regards,

Uncle Vic