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- Bunde & Upmeyer Jewelry Mfg. Co.
Country City Milwaukee WI
Era c.1943
Symbol crown
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- Diggelen, J.V.
Country City Den Haag
Symbol cartouche, frame, octagon, rectangle, square
Shape cartouche, frame, octagon, rectangle, square
Era early 20th century
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- Ewing Co., J.D.
Country City Philadelphia PA
Symbol wings
Era c.1915
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- International Jewelry Workers Union of America
Country City New York NY
Symbol acorns
Era c.1896, c.1915
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- Rigollet, Louis
Country City Paris
Era c.20th Century
Symbol arrow, cartouche, frame, lozenge, rhombus
Shape cartouche, diamond, frame, lozenge, rhombus
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- Ullman & Co., David
Country City New York NY
Era c.1915
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- Uncas Mfg. Co.
Country City Providence RI
Symbol arrow
Era c.1950, c.1943
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- Unger & Cristl
Country City Newark NJ
Era c.1915
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- United Mfg. Jewelers
Country City Des Moines IA
Symbol cartouche, frame, plant, triangle
Shape cartouche, frame, triangle
Era c.1915
-
- Untermeyer Robbins & Co.
Country City New York NY
Symbol cartouche, circle, flower, frame, plant
Shape cartouche, circle, frame
Era c.1922, c.1934 c.1950, c.1943
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- Vanderelst Co., A.C.
Country City Newark NJ
Era c.1915, c.1922
