A vintage patent drawing depicts a steam locomotive in detailed mechanical cross-sections, rendered in sepia tones on aged paper with handwritten signatures and official notation at the top. Multiple engineering views show the locomotive from different angles alongside close-up diagrams of wheel mechanisms and mechanical components, creating a technical yet nostalgic composition that celebrates industrial innovation. Constructed from woven polyester with a soft microfiber lining and a sturdy zipper, made to order for 13 and 15 inch laptops. Everyday protection carrying an independent artist's work, not another plain black sleeve.