If those Shimano SF dropouts pictured above are stamped, somebody went to a hellava lotta trouble to make them look forged. You are not going to get the rounded edges, and the sharp reliefs between the clamping surfaces and the base surface in a one-shot stamping process. For the same reasons as expressed by SJX426, I'm also skeptical that the Campy dropouts pictured on page 1 of this thread are stamped.