This Frank Lloyd Wright Ceramic Coffee Mug design is adapted from the Charles Ennis House windows, representing abstractions of wisteria. The Ennis House (1923) was the last, and largest of the four textile block houses. Whether as a gift for an architect, for a true architecture aficionado, or for yourself, the Frank Lloyd Wright Ennis House Coffee Mug is a perfect choice. Mug Capacity: 15 fluid oz.