I got this yellow Abbiati sample at the Super Show, and as I was putting it in the collection, noticed that its center inlay is different from all the others. It doesn't have "Italia" on the inlay and the word "Security" is there in red. This is a standard size 39 mm chip.

Anybody know if this change is significant? Does this series have special security built-in?

I'd like to buy or trade for other samples with these differences if you have extras.