WHAT: Rare Original Challenge Coin 232nd Navy Birthday Ball San Antonio Dated 10/13/07. NOTES: Is this the rare piece you are missing to complete your display? NOTES: A high percentage of profits are donated to a local 501c3 veteran organization. Thank you for your support. Get the book in the picture or check out the Admirals Podcast. It will change your life.. Know a service member suffering from a TBI? Grab what is in the last photo from Azon. I just know FIRST HAND, it works!