I think that I may very well be the owner of the last of Genes 68-B frames. At least, it was the last one that Brattons had in stock. Before that, I had been battling with an original for ages, trying to repair with silver solder. Every time that I thought I had nailed it, the last fine block sanding of a repair would reveal another pinhole that had to be filled, and such the process continued over and over again. Finally I sent it to the plater, only to reveal that there must have been another pinhole to small for me to detect, but still making for a big ugly blister in the plating.
Denied Genes frames I would today have opted for the best possible frame from a standard model, that has previously only been painted, and has not been left with the acids from the original plating inside for decades. After plating I would have applied the procedure mentioned above of drilling holes in hidden places to accomplish inside flushing and coating.