A historical cartographic representation of Lake Michigan's coastline and lighthouse locations rendered in muted earth tones and soft greens, with hand-drawn typography and fine linework characteristic of late 19th-century mapmaking. The composition balances geographic detail with decorative elements, including inset maps and a legend, creating a document that functions equally as navigation tool and nostalgic artifact of maritime history. 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.