Jim, All of the ivory linked chains that I have seen were made
of one piece. That is to say, each link was carved in an intact
form, linked to the next intact form out of a single long piece
of ivory. The pieces are not linked together afterward, they are
carved linked together.In my limited experience, ivory can’t
successfully be twisted or bent without immediate snappage. Best
of luck with the search.
Lisa,(It’s stopped raining) Topanga, CA USA