How to display a single coin so both sides show
Most ways of showing a coin hide half of it. A frame or a display box shows one face. An album shows both, but only when you take it off the shelf. These are the options I have used for putting one coin on a desk or a shelf, with what each does well.
1. A cardboard or plastic flip
A 2x2 flip costs a few cents and shows both sides. It is the standard way to store and label a coin. It does not stand up on its own, and it looks like storage rather than display.
2. A round capsule on a small easel
A clear capsule protects the coin well and shows both sides. Each capsule fits one diameter, so every coin needs the right size, and coins in between sizes need a foam ring. A separate easel holds the capsule upright.
3. A graded slab on a slab stand
If the coin is already certified, the slab shows both sides and a slab stand holds it upright. This is the usual choice for valuable coins and for long-term storage.
4. A display box or frame
A wooden box with a glass top, or a wall frame, looks handsome and suits a gift. It shows one side only.
5. An adjustable holder: the Puck
I designed the Puck because none of the above let me put any coin I liked on a shelf with both sides visible. Three talons close on the rim of the coin, so one holder fits anything from a dime to a Morgan or Peace dollar without foam rings. It has a window on each side and its own fold-out stand.
Whichever you choose
Hold the coin by its edge, never by its faces. Keep it out of direct sunlight and away from damp. Do not clean it.