101st Airborne Army Early 60s version Army Paratrooper Silver Coin -- Very Rare!

Up for your consideration...one vintage, genuine rare 101st. Airborne Army paratrooper silver coin! This coin is in mint condition. Early to mid 60's version It is my husbands, who served in the 101st. back in the early 60's. I tried to take it out of it's case to get a better pic., but I can't figure out how to open the case! Well, I got the case open and took a few out of the case. Camera is not that great but the coin is in mint condition, no scratches or dings. Case has a little wear on it but coin is mint! It has been stored in this original case since he brought it home, and has no scratches or discoloring. The case itself looks a little worn for wear, but, from what I can see, coin looks awesome! It appears to be silver however, I do not see any metal markings on it. It is heavy for it's size. I would say it's a little bigger, and heavier, than the US coin dollar. Please feel free to ask any questions before bidding. Comes from a smoke and pet free home. Thanks for looking!