How do I verify if I have Sean Highland cams?

[tguns6165]

I recently purchased a set heads for my Cobra and I was told that they had Sean Highland Stage 2 camshafts. I don't see any distinguishing markings on them, so I was wondering if there was a way to tell.

 

[99cobra09]

They are regrounds i suppose, so it means they might not have any markings.