To answer everyone, this is the one in Deerfield Beach.
Regarding the quarter, my hypothesis is that this was a little dive treasure found and they threw it in the pocket and forgot about it. Apparently they also dove with the tags because that was all the shredded paper that was on the inside.
That was probably an inspection tag. The tags I'm talking about are attached to the outside via those annoying little plastic dohikies that are everywhere attaching price tags and manufacturer labels on everything from BCDs and wetsuits to clothes, hats, towels, etc, etc, etc.