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- Dorst Co., The
Country City Cincinnati OH
Symbol cartouche, frame, lightning, zigzag
Shape cartouche, frame
Era c.1915, c.1934, c.1950, c.1943
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- Gübelin
Country City Lucerne
Symbol cartouche, frame, infinity, oval, zigzag
Shape cartouche, frame, oval
Era e.1854
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- Holmsen, Aksel
Country City Saejord
Symbol diamond, zigzag
Shape diamond
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- Magnussen, Erik
Country Era (1884-1961) e.1901
Symbol zigzag
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- Vereinigte Werkstätte Für Kunst Im Handwerk
Country City Bremen, Munich
Symbol cartouche, frame, rectangle, snake, zigzag
Shape cartouche, rectangle
Era e.1897-1991
