This is my first time on any gun forum. I have a High Standard HD Military pistol that I need some help with. Inside of the slide there is what appears to me to be a crack forming (I will attach a photo). However, from a couple of pictures I found online there is certainly supposed to be some kind of indentation in the same spot. I am not sure if this is a crack or an intentional cut on the slide. There is some kind of metal part under the cut too, I assume it is likely the ejector. Thanks for any help.If any one has any knowledge about these old guns I would appreciate the help.