Help with hallmark on cherub dish

Hello! Hoping someone can help me identify the maker of this piece, or at least tell me what country it came from. Anything at all would be greatly appreciated!

The marks are from Hanau (Germany). The maker is Storck & Sinsheimer. See Hanau Pseudo Hallmarks • Online Encyclopedia of Silver Marks, Hallmarks & Makers' Marks.

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Thank you very much!