Reference Library

Gruen National Watch Case Co.

Location: Cincinnati

Years of Operation: 1921-1958

American Case Trademarks & Hallmarks

Gruen
Nat'l W.C.Co. (Gruen National Watch Case Co.)

Gruen National Watch Case Co.

Gruen
Nat'l W.C.Co.

18
G (Gruen National Watch Case Co.)

Gruen National Watch Case Co.

18
G

Q.C.
W.C.Co
18K (Gruen National Watch Case Co.)

Gruen National Watch Case Co.

Q.C.
W.C.Co
18K

Q.C.
W.C.Co.
14K (Gruen National Watch Case Co.)

Gruen National Watch Case Co.

Q.C.
W.C.Co.
14K

QC
W.C.Co.
18K
U.S. Assay (Gruen National Watch Case Co.)

Gruen National Watch Case Co.

QC
W.C.Co.
18K
U.S. Assay

QC
W.C.Co.
18K
U.S. Assay (Gruen National Watch Case Co.)

Gruen National Watch Case Co.

QC
W.C.Co.
18K
U.S. Assay