I'm not sure what catalog you are referring to William. If you are talking about the link I posted those are markings from a different Proof house. The book I quoted does not show pictures of the proof stamp on actual firearms. It just gives a detailed drawing and explanation of the Proof that was used at that time. The markings on the barrel do look like the were punched . The edges curve down like the were pushed into the metal.Why is it oval??? Do you know what the stamp looks like? If so please post a picture of the original stamp. That would alleviate any question as far as real or replica. If this could be seen with better pics and also taken apart there would be no question about it. William if you are an expert on these please say so and I will take your word on it.