Thanks. Yep that's what I thorght on one utill I saw other one with 02. Looks like time next to it though. I'm hoping it's still a manufacturer reference number. My head gaskets were replaced at ducati service agent as I had a blowen one and bent head on other. I was charged for two new headgaskets . Bike wouldn't start after that and only did less than 20 Ks on it before seeing water in oil. Had it pulled apart and new micanic and they said gaskets were both reused and painted with copper coat. So if the number is manufacturing date reference could help prove this. Thank you for helping