Up for sale is a legendary piece of computing history: an original IBM Model M mechanical buckling-spring keyboard, part number 1391401. This specific keyboard was manufactured in the USA on August 19, 1991, and features a pristine single-owner history, having been saved directly from an active desk at an IBM workplace.
This keyboard delivers the definitive, loud, tactile "clicky" typing experience that the Model M line is world-famous for. It comes completely paired with its original, heavy-duty detachable coiled gray cable featuring the unique 6-pin SDL connector block. The plastic casing has exceptional structural integrity with absolutely no deep gouges, cracks, or structural flaws. Every single keycap is original, clean, and firmly attached. The rear birth label sticker on the lower case is completely legible and untorn. The item displays standard minor cosmetic dust and light surface wear consistent with historic office tasks, making it a stellar candidate for a minor wipe-down or immediate inclusion in a premium retro setup.Because of its heavy internal steel reinforcement backplate, this keyboard is dense and heavy. It will be packed with elite care, wrapped securely in multiple layers of heavy-duty bubble wrap, and shipped inside a rigid, oversized cardboard shipping box to ensure it survives transit in the exact condition shown. Perfect for vintage computer collectors, mechanical keyboard hobbyists, or retro-computing curators.