Titleist 913f authenticity

[Tiger man]

Hi guys recently purchased a new 913 3 wood from the site that shall not be named. Anyway club has arrived and looks the part but has no serial number on the head. Shaft has the authenticity sticker on it though, should I be worried or anyone else find they don't have a number on them?

 

[Imurg]

Some manufacturers are veering away from putting serial numbers on everything.
If in doubt send photos and in for to Titleiet and they should be able to tell you.