-
- Hankins, Alvin H.
Country City Seattle WA
Shape star
Symbol star
Era c.1922, c.1934
-
- Hanover Jewelry Mfg. Corp.
Country City Boston MA
Symbol cartouche, frame, oval
Shape cartouche, frame, oval
Era c.1934
-
- Hansen-Bennett Co.
Country City Attleboro MA
Symbol crown
Era c.1915
-
- Harber Co., W.J.
Country City New York NY
Symbol cartouche, circle, frame
Shape cartouche, circle, frame
Era c.1950, c.1943
-
- Hardie & Ekeblad Co.
Country City Holland MI
Era c.1922
-
- Hardie Jewelry Co.
Country City Holland MI
Era c.1934
-
- Harris & Co., H.J.
Country City Philadelphia PA
Symbol arrow
Era c.1915
-
- Harris Steinmeyer & Co.
Country City San Francisco CA
Symbol cartouche, frame, line, quatrefoil, square
Shape cartouche, frame, square
Era c.1934 c.1950, c.1943
-
- Harris, Charles R.
Country City North Windham CT
Symbol animal, plant
Era c.1915
-
- Harrison Jewelry Co.
Country City Attleboro MA
Era c.1922
-
- Hart Bros., Inc.
Country City Newark NJ
Era c.1922
-
- Hart Co., D.A.
Country City Attleboro MA
Symbol heart
Shape heart
Era c.1915
-
- Hart Jewelry Co.
Country City Chicago IL
Symbol cartouche, frame, heart
Shape cartouche, frame, heart
Era c.1915, c.1934
-
- Hartdegan & Co., Chas.
Country City Newark NJ
Era c.1869
-
- Harteveldt Co., Henry H.
Country City New York NY
Era c.1943
-
- Hartman & Co., Harry
Country City Los Angeles CA
Era c.1943
