~~~ also missing in other collections you know of?

If not, then the completion may not be impossible.

What I once referred to as being virtually impossible when I was building my Bahamian Roulette collection was finding chips from a certain table at the Lucayan which was never open whenever I visited and, possibly only open when a certain ship from Asia was in port; which was only twice per year and, I thought even if by chance one or two of those players did walk with some chips, how in the world would I even be able to ask anyone...which tells me you have a much better chance in finding some of your missing chips than I ever had in finding only one chip from the table with the Conch inlay...

Good luck...