ne of the universal truths when it comes to almost all types of coins is that they are round. Yes, we’ll concede that there are some which are not so; yet for the most part, and in the minds of most people, coins are relatively small, round objects that can be held in a hand, or tucked in a pocket. The reasons for this are most likely buried in history. For example, all the coins of the ancient world were hand-struck, and it was easiest to impart the force needed to reproduce an image from a die to a piece of metal onto some piece of metal
