Marks & lettering
13 marks
c. 1940–1949
Eisenberg
Dated to the mid-1940s; the script resembles Eisenberg Original with the second word omitted.
c. 1942–1945
E.
The source notes that this script E may have been used after 1945 when space for a mark was limited.
After 1955
Eisenberg ©
Block-letter signature with a copyright symbol; the source dates it after 1955.
From 1970
Eisenberg Ice ©
Block-letter version with a copyright symbol; the source describes use onward.
Undated
Eisenberg Original
blue
The source reports a Sterling Nordic mark and an Eisenberg hangtag on the same brooch, attributed as an early Eisenberg example by designer Ruth Kamke.
Undated
Eisenberg
Block-letter signature used before the copyright symbol was added; the caption supplies no year.
Undated
script
Mexico
The caption spells the signature Eisengerg Original and identifies it as the mark.
Undated
Eisenberg Ice
Trademark records give first commercial use in 1935; the source reports this early mark on paper items, not observed early jewelry.
Undated
Eisenberg
Trademark records cited by the source give first use on clothing in 1933, rather than a jewelry mark-use interval.
