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- Michelsen, A. (Anton)
Country City Copenhagen
Symbol cartouche, crown, frame, oval
Shape cartouche, frame, oval
Era (1809-1877) e.1841
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- Mortimer & Hunt
Country City London
Symbol banner, crest, crown, shield
Shape crest, shield
Era e.1838
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- Mount Royal Corp.
Country City New York NY
Shape star
Symbol crown, hat, star
Era c.1922
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- Muhr’s Sons, H.
Country City Philadelphia PA
Symbol cross, crown, maltese cross
Shape cross
Era c.1896, c.1915
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- Ostby & Barton Co.
Country City Providence RI
Symbol anchor, arrow, circle, crown, eagle
Shape circle
Era c.1934 c.1950, c.1943
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- Pineda, Antonio
Country City Taxco
Symbol cartouche, circle, crown, eagle, frame
Shape cartouche, circle, frame
Era (1919 – 2009) e.1941
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- Queen-O-Love Diamond Rings Inc.
Country City New York NY
Symbol cartouche, crown, diamond, diamond ring, frame, gem, heart, ring, triangle
Shape cartouche, diamond, frame, heart, triangle
Era c.1950, c.1943
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- Resen, O.M.
Country City New York NY
Symbol crown
Era c.1950, c.1943
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- Rogers’ Sons & Co., Henry
Country City Montreal QC
Symbol cross, crown, flag, maltese cross
Shape cross
Era c.1915
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- Schrader-Wittstein Co.
Country City Chicago IL
Symbol banner, bird, crown, diamond, eagle, gem, gemstone, kite, lozenge, wings
Shape diamond, kite, lozenge
Era c.1896, c.1915
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- Tenen Bros.
Country City New York NY
Symbol arrow, banner, cartouche, crown, diamond, frame, lozenge, rhombus
Shape cartouche, diamond, frame, lozenge, rhombus
Era c.1934 c.1950, c.1943
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- Thomae & Son Inc., Chas.
Country City Attleboro MA
Symbol cross, crown, lion
Shape cross
Era c.1915, c.1934, c.1943
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- Trifari Krussman & Fishel Inc.
Country City New York NY
Symbol cartouche, circle, crown, frame
Shape cartouche, circle, frame
Era c.1922, c.1950
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- Vos & Co., N.V. Juweelenfabriek – v/h Jacques
Country City Den Haag
Symbol cartouche, crown, frame, heart, octagon, rectangle, square
Shape cartouche, frame, heart, octagon, rectangle, square
Era early 20th century
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- Weinmann & Co.
Country City Philadelphia PA
Symbol crown
Era c.1896, c.1915
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- Wexel & Co., H.
Country City Attleboro MA
Shape shield
Symbol axe, bow, crown, flower, globe, horseshoe, leaf, pearls, people, shield, world, wreath
Era c.1896