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- Postmus, J.
Country City Hoorn
Symbol cartouche, frame, hexagon, square
Shape cartouche, frame, hexagon, square
Era early 20th century
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- Potter & Buffinton Co.
Country City Providence RI
Symbol cartouche, frame, marquise, navette
Shape cartouche, frame, marquise, navette
Era c.1915, c.1934
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- Potter & Co., E.A.
Country City Providence RI
Symbol cartouche, circle, frame
Shape cartouche, circle, frame
Era c.1896, c.1915, c.1922
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- Potter, H.E.
Country City Cleveland OH
Symbol cartouche, frame, leaf, oval
Shape cartouche, oval
Era c.1898-1948
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- Pouw, J.J.
Country City Alkmaar
Symbol cartouche, frame, ribbon
Shape cartouche, frame
Era early 20th century
-
- Powell, James & Sons
Country Era e.1834
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- Powers & Mayer Mfg. Corp.
Country City New York NY
Symbol cartouche, diamond, frame, kite, laurel, lozenge, ribbon, wreath
Shape cartouche, diamond, frame, kite, lozenge
Era c.1896, c.1915, c.1934
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- Prado, Nilda Nunez
Country City La Paz
Era (1918 – )
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- Prakken, Dr. H.
Country City Joure
Symbol caduceus, cartouche, frame, quatrefoil, snake
Shape cartouche, frame
Era early 20th century
-
- Pramer, Josef
Country Era 1867-1922
Symbol cartouche, frame, oval, v clipped
Shape cartouche, frame, oval, v clipped
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- Pramer, Ludwig
Country Era 1867-1922
Symbol cartouche, dot ., frame, octagon, oval, rectangle
Shape cartouche, frame, octagon, oval, rectangle
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- Precious Metals Specialties Co. Inc.
Country City Newark NJ
Era c.1950
-
- Preformed Parts Inc.
Country City Pleasantville NY
Symbol infinity
Era c.1950
-
- Premsela en Hamburger
Country City Amsterdam
Symbol cartouche, frame, plus +, ribbon
Shape frame
Era early 20th century
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- Premselaar, L.
Country City Amsterdam
Symbol cartouche, frame, plus +, ribbon
Shape cartouche, frame
Era early 20th century
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- Presburg, A.
Country City Haarlem
Symbol cartouche, frame, ribbon
Shape cartouche, frame
Era early 20th century