If you have Waynes' book, then you are money ahead. Just compare every detail with the pictures in the book. There can be sleight differences, but very sleight. Details should not be missing and borders should be clean,crisp and uniform. It is a good sign that it is a Pack etch on a Pack bayonet. I am not familiar with this etch and anyone who is would need better pictures to give a qualified opinion. They need to be nearly straight on using the macro setting on your camera.
Many thanks Jim..i'll request more detailed pics