![DVIDS - Images - Airman Kearns dons her USS Constitution command ball cap for the first time after completing his basic historian qualification [Image 4 of 5] DVIDS - Images - Airman Kearns dons her USS Constitution command ball cap for the first time after completing his basic historian qualification [Image 4 of 5]](https://d1ldvf68ux039x.cloudfront.net/thumbs/photos/2011/6429022/1000w_q95.jpg)
DVIDS - Images - Airman Kearns dons her USS Constitution command ball cap for the first time after completing his basic historian qualification [Image 4 of 5]
![DVIDS - Images - PSSA Modeley dons his USS Constitution command ball cap for the first time after completing his basic historian qualification [Image 2 of 5] DVIDS - Images - PSSA Modeley dons his USS Constitution command ball cap for the first time after completing his basic historian qualification [Image 2 of 5]](https://d1ldvf68ux039x.cloudfront.net/thumbs/photos/2011/6429020/2000w_q95.jpg)
DVIDS - Images - PSSA Modeley dons his USS Constitution command ball cap for the first time after completing his basic historian qualification [Image 2 of 5]
![U.S. Naval History on X: "It's #NationalHatDay! Let's talk Command Ball Caps! Do you still have your command cap(s)? Share a photo with us! https://t.co/9n5IBAOE9a" / X U.S. Naval History on X: "It's #NationalHatDay! Let's talk Command Ball Caps! Do you still have your command cap(s)? Share a photo with us! https://t.co/9n5IBAOE9a" / X](https://pbs.twimg.com/media/DTmblOSVoAAOoIF.jpg)