The Wallet photo print measures 51mm x 76mm, or approximately 2 inches wide by 3 inches tall, resulting in a compact surface area of just under 25 square inches. The proportions give it an aspect ratio close to 2:3. As the name suggests, Wallet size is designed to fit inside a wallet for portability. It is dwarfed by conventional photographic print sizes. The origins of the Wallet format can be traced back to early 20th century documentation needs for small identity and membership cards that could be carried in a wallet. Later it crossed over into a photo print size for tiny printable snapshots. Today, Wallet size still fills a niche for highly compact photos used for IDs, business cards, and anytime portability is needed. Quality is very limited by the mini dimensions but useful for identification. Forgo cropping and reserve Wallet size for shots captured in-camera for this purpose. The niche Wallet format allows easy portability of tiny printable photos.