A technical patent drawing for an acoustic guitar rendered in white linework against a charcoal black ground, showing three detailed views of the instrument from different angles with period signatures and patent information dated May 2, 1893. The composition combines the precision of architectural draftsmanship with the organic curves of the guitar's body, creating a striking interplay between mechanical clarity and musical form. Built from double-wall stainless steel and made to order, holding 20 ounces with a snap-on lid, a standard-cup-holder fit, and wraparound artwork. Your commute carrying original art instead of another branded tumbler.