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- Inter-State Jewelry Mfg. Co.
Country City New York NY
Era c.1950
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- Sagorsky & Sons, I.S.
Country City Philadelphia PA
Symbol laurel, leaf, ribbon, wreath
Era c.1915, c.1934
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- Springer, I.
Country City Amsterdam
Symbol cartouche, frame, rectangle, square
Shape cartouche, frame, rectangle, square
Era early 20th century
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- Stigter, A.I.
Country City Amsterdam
Symbol cartouche, frame, ribbon
Shape cartouche, frame
Era early 20th century