Challenge coins are earned when you are in an elite or otherwise special branch or unit of US military. One purpose of them is to call bs on someone claiming that they were doing a certain op or in a certain place and you are really the one doing it. And you know the details of what was claimed but it's not right so you show your coin and they better have theirs. Or they are full of it. That's one purpose of them.
Nope the ones on top with M3M team 2008 with foreign looking writing is actually the M3M Group India. A real estate company. Top sellers probably got that in 2008. Or it's their special made coin.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited. Contact Us | Advertise Here | Privacy Policy / Terms of Use