How to display your postcards
Because postcards are thin and come in standard sizes, you shouldn’t have a hard time finding a frame that will fit them. Most postcards are either 4 by 6 inches or 4 ¼ by 6 inches, so picking up something like this two-pack of LaVie Home 4 by 6 Picture Frames will give you a more sleek, polished look on a budget. You can also flush-mount them — a great strategy if you’re looking for something a bit more ornate than plain black or brown options.
To create a display that can act as a centerpiece for your collage wall, consider putting multiple postcards in the same large frame. A pre-cut mat is the easiest way to accomplish this, but you can also attach your postcards to a piece of backing material and place this display behind the glass. Try to choose postcards that contain similar colors or ones that are central to a specific theme. This design will create a more cohesive look visually, but it will also give you the opportunity to tell a story with your picks.
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