Just saw this on Prairiemod, a Darwin Martin House Window is being auctioned and the auction house has made a high resolution image of the windows available. Take a look here and click on the ‘look closer’ icon.

Looking closely at Wright’s most famous glass design there is a lot to see: the variation in the colors that gives the window so much character, its handmade quality as seen in the solder joints and the geometric imperfections. One gains an appreciation for the time it takes to build a window as intricate as this, where each piece of glass and metal is cut to fit perfectly with it’s neighbor.