Found these marks on a Louis Seize-style sugar bowl, imported to Sweden by C G Hallberg in Stockholm and marked with the town mark ”head of St Erik”, patron saint of Stockholm, the Swedish import mark ”three crowns in an oval”, ”S” as in Silver and the date letter Y 7 and that is 1925.
The interesting thing is the Maltese cross and the ”swan over shield mark”. The last mentioned is recognized by me to be that of Gebrüder Glaser of Hanau. This could perhaps be a clue to solve the mystery.
Best regards/JAKJO

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