This bookmark is inspired by the window design in the currier museum of arts Zimmerman house, a masterful Usonian house, designed by famed American architect Frank Lloyd Wright. The bookmark is based on the design for the Zimmerman houses concrete block windows which run horizontally across the houses. The block itself is a graceful exercise in proportional relationships, measuring two feet by two feet with a one-foot by a one-foot central glass pane. Solid brass, electro-plated with gold finish Dimensions approx. 1.75 w x 1.75 l. Made in United States.