Hi, you did okay, it is indeed a national eagle emblem that was worn by the Army on their service cap.
To authenticate we always recommend photos of front and back. It appears to be in relic condition. I believe you can do a lot better for not much more cost. NH
It was the best I could do as I couldn't find any other trusted sources that sold these. I could have done a lot worse IMHO. Thanks to both of you, I'll upload better pics when it arrives
you should have looked in the WRF sales site.
also some nice sets on this site. AC Militaria if you are looking for original cap insignia.