A vintage motorcycle patent drawing renders a classic Harley in precise technical lines against a deep charcoal ground, with three angled views showing the bike's side profile, internal mechanism, and detailed components. The monochromatic blueprint aesthetic captures the mechanical elegance of early 20th-century industrial artwork with crisp linework and handwritten annotations framing the invention. Printed on smooth white card stock and made to order, artwork on the front, blank inside, envelopes included in every set. A handwritten note that arrives as an independent artist's work.