I was at the semi-annual Baltimore Coin Show this weekend and I had this question many times which actually comes up at many coin shows. A collector collects a number of different coins, Morgans, Silver Eagles, etc. Now of course I know some of the sizes of these coins in my limited memory banks, but most I do not. In order to utilize Coin Albums, Coin Display Cases, Coin Flips or Coin Capsules, you need to know "what size is it?" (meaning your coin - ideally in millimeters).
In order to help you, I have created a little cheat sheet of common coin sizes (and not so common) from varying periods of history. This list is not all encompassing, nor is it the bible. This is a list I have accumulated over the years over conversations and over internet research. But in order for you to get the best fitting Coin Album, Coin Display Case, Coin Flip or Coin Capsule, it would be better for you to measure the coin with a Coin Caliper. A Coin Caliper is essentially a ruler for coins that will help you measure your coin in millimeters or inches. This will ensure that you create the optimum environment for you coins.
