This is one example of a display coffee table.

Love your collection since I'm a Univ. of Maryland graduate "Fear the Turtle!" Many people display small items like yours in the print bins used by printing presses like the first photo here. You can also get similar divided trays like those used in jewelry stores like this one for watches in the 2nd photo. Other types of divided boxes and display units are available with both open and glass covers depending on if you want to be able to handle your collection. See the third and fourth photo.