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- Aisenstein & Gordon
Country City Philadelphia PA
Era c.1934
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- Albertus, Gundorph
Country City Copenhagen
Era 1887 – 1970
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- Asprey and Co.
Country City London
Symbol cartouche, frame, oval, quatrefoil, triangle
Shape cartouche, frame, oval, triangle
Era 1903-present
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- Ghedina, Agostino
Country Symbol cartouche, frame, rectangle
Shape cartouche, frame, rectangle
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- Gretser, A.G.
Country City Den Haag
Symbol cartouche, frame, rectangle, square
Shape cartouche, frame, rectangle, square
Era early 20th century
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- Groen, A.
Country City Amsterdam
Symbol cartouche, frame, ribbon
Shape cartouche, frame
Era early 20th century
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- Groenen, A.J.
Country City Eindhoven
Symbol cartouche, frame
Shape cartouche, frame
Era early 20th century
