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- Harris, Charles R.
Country City North Windham CT
Symbol animal, plant
Era c.1915
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- Hartz et Cie
Country City Paris
Symbol animal, cartouche, cat, diamond, frame, lozenge, rhombus
Shape cartouche, diamond, frame, lozenge, rhombus
Era e.1904
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- Hickok Mfg. Co. Inc.
Country City Rochester NY
Symbol animal, banner, cartouche, circle, crest, feather, frame, shield
Shape cartouche, circle, crest, frame, shield
Era c.1922, c.1934 c.1950, c.1943
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- Jackson & Co. Ltd., J.H.
Country City Toronto ONT
Symbol animal, dog
Era c.1915
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- Jackson-Jewelers Inc.
Country City Oakland CA
Symbol animal, hare
Era c.1915, c.1922, c.1934
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- Katzman Co. Inc., Geo.
Country City Louisville KY
Symbol animal, cartouche, cat, circle, frame
Shape cartouche, circle, frame
Era c.1934
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- Kent & Stanley Co. Ltd.
Country City Providence RI
Symbol animal, bird, eagle, globe
Era c.1896, c.1915
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- Keystone Jewelry Mfg Co.
Country City Attleboro MA
Symbol animal, banner, crest, lion, shield
Shape crest, shield
Era c.1915
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- King Collor Button Co., The
Country City New York NY
Symbol animal, banner, button, circle, horseshoe, lion
Shape circle
Era c.1896, c.1915, c.1934
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- Krupp, Arthur
Country City Berndorf, Esslingen, Milan
Symbol animal, bear, cartouche, circle, frame, square
Shape cartouche, circle, frame, square
Era c.1922, e.1843
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- Landsberg, Silvius
Country City New York NY
Shape badge
Symbol animal, badge, bird, eagle, medal
Era c.1915
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- Lebolt & Co.
Country City Chicago IL
Symbol animal, cartouche, creature, diamond, frame, griffin, kite, lion, lozenge, rhombus
Shape cartouche, diamond, frame, kite, lozenge, rhombus
Era c.1915, e.1899-?
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- Lederer Co., S.&B.
Country City Providence RI
Symbol animal, asterisk *, bird, eagle, obelisk, swivel hook, wings
Era c.1896, c.1915, c.1934
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- Lees & Co., Geo. H.
Country City Hamilton ONT
Symbol animal, bulldog, cartouche, dog, frame, leaf, oval
Shape cartouche, frame, oval
Era c.1896, c.1915
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- Lefèbvre, Eugène
Country City Paris
Symbol animal, bird, cartouche, diamond, frame, kite, lozenge, rhombus
Shape cartouche, diamond, frame, kite, lozenge, rhombus
Era e.1874
