I'm sorry, but that Eagle shows signs of double stamping, as well. There appear to be four "wing bars," not the regulation 3, and several of them are far thicker than they should be.
I've seen many examples of very poorly stamped WaffenAmts (or however it's spelled) on late war guns of all stripes.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.