You may have had of challenge coins being referred to as commander coins or unit coins. These coins had differing significance to different group of people. You will see people attaching special memories, hard work, and friendship on them. There are different challenge coins for each unit of law enforcement out there. This practice of having challenge coins began with the United States Air Force personnel. They were made and presented to them as a way of expressing thanks for the kind of job they had to do during the world wars. They were for them to see just how far they had gone.
Bronze plating is the choice for these coins. Some can have silver and gold plating as well. On the unit, it shall be printed the insignia and motto of the unit. To this day, these coins hold a special part in the hearts and pride of each unit member. New members are usually given one of them, to show their acceptance into the team. These coins also serve the purpose of getting the team psyched up. These are all reason why an officer finds so much pride in their coin.
There are more people who now see the value of these coins, not just law enforcement of the military. You will see them being traded at auction houses, online website, and through private individuals. The hunt is no for the rarest, unique and valuable pieces. It is prudent to first confirm whether you are buying the real thing, as there are so many fake ones doing the rounds online. You need to be informed on the exact insignias that should be on a given coin, and see that it is the one printed on a coin you are being sold to. Old coins tend to be more valuable than the new ones. The newer they are, the less value they have attached to them. Those that were once issued due to acts of courage by law enforcement officers tend to also be quite pricey. They are even more so due to their limited numbers.
While you are making your purchases, you need to watch out for any signs of damage. Acquiring a coin will give you certain responsibilities. It is upon you to ensure the coin does not get damaged or defaced. Any that is found to be spoilt will no longer be of much value. There is a large collection of coins that got destroyed this way, since their owners had drilled a hole on them so as to wear them on chains. That one hole cased them to see their value drop do significantly. This calls for care in how you inspect such coins. Note all the damages you see.