I tried posting this in the "name this" thread but didn't get an answer. I have the Prada Antik Metallic Dome and I was wondering what leather was used? It said "pigskin" on some website (can't remember which) and somewhere else it says "calfskin". I don't have any bag that feels or looks like this so I'm confused: It says "piomba leather" but I don't know what that is!!