Air Force Coins

I am not really aware about air force challenger coins available online , it was just my dad who mentioned it to me a few months ago. He told me that it was the latest addition to his curent coin collection. I checked it online and some saw really great pieces that I can give him as Christmas gift.  Some of the items that I like are the Air Force Coin Knife ,  Mom and Dad coin set with velvet box,  Air Force retired coin and the Vietnam Veteran Coin. It comes in good prices so I might get him a few pieces that would fit in my budget. If you know someone who enjoys collecting coins, they should and check out these great pieces!