camshaft identification

[Glliw]

So i was taking apart my parts car, trying to decide on the next parts to sell, and i noticed on the camshafts on the timing belt end had an "H" on them and a 31 2 underneath the H.On the opposite end is a D. Is this the stock lettering or does it denote it to be hks or something else? Is there any other marks to check to make sure?

 

[Glliw]

anyone? It would like to know so I can save myself 700 bucks from the get-go.

 

[bomextalon]

as far as i've ever seen HKS cams actually have HKS stamped into the casting. But iam not too sure about anyother brands of cams, but if you're looking i'am trying to sell a set of HKS cams.