Looking for some fender ID help

[Thealien]

I have an OEM new never installed fender (basically NOS but its been primed) I had purchased to install on my 1972 GMC Jimmy. I have it for sale HERE ON THE FOR SALE SECTION A member or two questioned whether it was OEM or repop. I Know what it is and another member basically showed the differences in OEM and repop. Some members seem to think if the fender does not have the little triangles at the top seam they are not OEM. I know we have some very knowledgeable members here who can help pointing out the differences and maybe it will help others out in the future when looking to tell the difference.

Thanks in advance
Mark!