(images for young gossamer)(luxorgan - mobile color machine)image 1 - watercolor from the series mathematical abstractions - 1941image 2 - watercolor for a mobile-color composition - 1934image 3 - drawing showing wiring connections between keyboard and luxorgan lamps - ca. 1917image 4 - lamping plan for a later version of the luxorgan - 1920"from 1917 on, claude bradgon began to develop a