Some text from Minecraft Wiki used under Creative Commons Attribution-Share Alike License 3.0
|Uses||Storing Items, signs|
|First Appearance||Update 1.4|
|Data Values||Hex: ??? Dec: ???|
An Item Frame's sole purpose is decoration. To add something to the frame, the player must first wield the object they want to display, then right-click the frame while holding the desired object. The frame will display whatever the player was holding, even if it's another frame. When an object is placed inside the frame, it can be rotated by right-clicking on it. These are most commonly used in Minecraft Shops or houses.
Many players like to make "grandfather clocks" by stacking two gold blocks on top of each other, attaching an item frame on one side, and placing a clock inside it. Players who want to save their gold can alternatively just create a wall clock instead. Some players create castles in creative mode and make halls full of item frames, and put powerful weapons in them. This mimics what was often done in the Middle Ages by rich soldiers, to preserve their weapons.