It has signs of use. Please see pictures for further description. The Vintage Apple Macintosh Computer Serial Mouse M0100 is a classic piece of technology from Apple, designed to be compatible with specific Macintosh models such as the Mac 128, 512, Mac Plus, and IIe. This mouse is a vintage collectible, offering a glimpse into the early days of personal computing. With a sleek design and a touch of nostalgia, the Apple Mac Mouse M0100 is a must-have for vintage computing enthusiasts looking to add a piece of history to their collection.