A technical blueprint rendered in classic blue and white shows detailed mechanical drawings of an early computing device with multiple cylindrical components, gears, and circular mechanisms arranged across the page. The composition combines engineering precision with historical significance, presenting cross-sections and top-down views that capture the intricate mechanical thinking of late 19th-century innovation. Water-resistant polyester, hookless and cut extra long to fit any bath, machine washable and made to order. It turns the bathroom wall into the room's best feature.