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- Macdonald, Frances
Country City Glasgow Scotland
Era (1874-1921)
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- Mackintosh, Charles Rennie
Country City Glasgow Scotland
Era 1868-1928
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- Mainar, Montserrat
Country City Barcelona
Era (1928- )
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- Maison G. Desbazeille
Country City Paris
Era e.1877
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- Makovsky, Vladimir
Country City Paris
Era (1884-1966)
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- Mannucci, Edgardo
Country City Rome
Era e.1957
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- Marcus, Herman
Country City New York NY
Era e.1850
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- Martinazzi, Bruno
Country City Turin
Era (1923 – )
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- Morel et Cie
Country City Paris
Era (1794-1860)
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- Movado
Country City La Chaux-de-Fonds
Era e.1881
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- Mucha, Alfonse Marie
Country Era (1860-1939)
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- Murdock Jewelry Co., H.E.
Country City Minneapolis MN
Era c.1934
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- Nanubhai Jewellers
Country City Bombay
Era e.1942
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- Nele, E.R.
Country City Berlin, Frankfurt
Era (1932 -)
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- Nienhuis, Bert
Country City Amsterdam
Era (1873 – 1960)