-
- Maintien Bros. Inc.
Country City North Attleboro MA
Era c.1915, c.1934
-
- Malkin & Teaman
Country City New York NY
Symbol cartouche, frame, triangle
Shape cartouche, frame, triangle
Era c.1922, c.1934, c.1943
-
- Manchester-Smith Co.
Country City Providence RI
Symbol caduceus, snake, wings
Era c.1915
-
- Mandalian & Hawkins
Country City North Attleboro MA
Era c.1915
-
- Mandel & Co., Inc., Sigmond
Country City New York NY
Era c.1922
-
- Mandeville, Carrow & Crane
Country City Newark NJ
Symbol cartouche, frame, oval
Shape cartouche, frame, oval
Era c.1896
-
- Mandle Co., Urie F.
Country City New York NY
Era c.1950
-
- Manleigh Inc.
Country City Providence RI
Symbol frame, scroll
Shape frame
Era c.1950, c.1943
-
- Manne & Son Inc.
Country City New York NY
Era c.1950
-
- Manning Co., J.H.
Country City Providence RI
Symbol cartouche, frame, triangle
Shape cartouche, frame, triangle
Era c.1915
-
- Mannist & Co., M.
Country City New York NY
Symbol cartouche, frame, square
Shape cartouche, frame, square
Era c.1896, c.1915
-
- Manz, Gustav
Country City New York NY
Shape rectangle
Symbol rectangle
Era (1865-1946) e.1892
-
- Marathon Co.
Country City Attleboro MA
Symbol cartouche, diamond, frame, lozenge, rhombus
Shape cartouche, diamond, frame, lozenge, rhombus
Era c.1934 c.1950, c.1943
-
- Marcasite Jewelry Mfg. Co.
Country City New York NY
Symbol cartouche, frame, oval
Shape cartouche, frame, oval
Era c.1950
-
- Marcus and Co.
Country City London, Palm Beach, Paris, Yew York
Era e.1892
-
- Marcus, Herman
Country City New York NY
Era e.1850
