...and are they C&S chips since the yacht was built the same year the Floridian Casino chips were made...?

The history in the article is sure interesting, though, I find no mention of a yacht in all of the Capone letters... especially if it was in Miami.... but, it could be I missed some letters while making copies of them way back then. All the Capone letters are archived here if anyone's interested.

Check out the interior; especially the detail (how it was outfitted) and storage areas.