Three technical drawings of a fire truck appear in white linework against a charcoal black ground, dated September 28, 1939, showing side profile, top-down, and isometric perspectives with patent notation and inventor's signature. The composition captures the mechanical precision of vintage industrial artwork, rendered in the stark contrast and technical clarity characteristic of early 20th-century patent illustrations. 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.