first off i will hit the similarities of the two, the back fork and kicker are very close along with the size and general growth so to speak of the antler, also similar is it appears that the brow tine is growing slightly forward on both. Also the burrs appear to be closely built and structured the same way. The front forks are a little bit different in the fact that the G4 appears to be longer and pointing more straight up.Find the horn Goose! Without any further knowledge and only given the two pictures i am going to say big daddy buck and his offspring (even a possibility of same buck depending on what conditions the old antler were in). let me know what you believe. Find the Horn Goose