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A look at a pair of good quality Royal Bonn vases bearing the Franz Anton Mehlem base mark together with various impressed marks.
The mark on this pair of blue and white Royal Bonn vases, was used between 1890 and 1920.
The typical mark consisting of 'ROYAL' over a crowned shield with stylized F-A-M within and '1755' over 'BONN' over 'GERMANY over the series name, in this case 'LYONAIS'
Via Kat Miller
