Signed Boucher with the inventory number 5600, no copyright , so assume pre 1955 manufacture . Both feminine with woven swags and double ring twisted links , and contemporary look . Well made , great detail measures 12 1/2 " x 1" , fold-over clasp ....measured at where it fits on my model's neck . This fits like a collar , so it is best when the neck measurement is 11" or less . Condition is very good looks like rhodium plate finish on the back .