A gem of Seattle's Summit Avenue is the fantastic Dakar Apartment Building. Built in 1963, this mid century modern building has a great detail of diamond like forms layered on the facade. These forms break up the modern facade into an interesting mid century feel. One would assume the diamond material would be some form of concrete, typical of this style, but a closer inspection demonstrates the shapes are actually wood.
One could loosely compare this facade to the theory that Alvar Aalto designed in a regional variation of modernism. As Aalto didn't follow the rigid rules of modernism for a more regional design, the Dakar Apartment Building doesn't use typical materials of mid century modern for a more regional material, wood.