I guess I hadn't clicked on zashibis's link, which is to the same report of a decision that I discuss at #7. So it isn't independent evidence as I thought. It could be something like a baccarat shoe, nutrax. I bet if the 2nd had had a clear idea of what it was, they would have described it.
In case people don't understand the "five families, five boxes" part of nutrax's quote, for a long time organized crime in New York was dominated by five "families", of which the Gambino family mentioned in the Zingaro case was one.
