Can anyone shed some light on the significance of this Korean War era trophy? I'd like to know a little bit about what it means. I heard my dad was a pretty decent shot back in the day but that's about all I know. Any insight would be appreciated.

https://preview.redd.it/6cakgpjirbyd1.jpg?width=1575&format=pjpg&auto=webp&s=3861dabdbf25c3a9f707fe3e2072a74825414361