Spectro-Chrome, c. 1925, Dinshah-Attuned Color Waves-Semaphore, Spectro-Chrome Institute, Malaga, New Jersey - Museum of Science and Industry (Chicago)

Wikimedia Commons file record, verified by direct fetch on 2026-08-13: photograph by Commons contributor Daderot, taken 2014-08-22, of an original Spectro-Chrome device (dated by the Museum of Science and Industry, Chicago to c. 1925) on exhibit at that museum. Commons lists the license as CC0 1.0 Universal Public Domain Dedication. Original file 2,962 x 4,732 px; resized to 1600px long side for this case (site/public/media/ghadiali-spectro-chrome-1920-1947/spectro-chrome-device-msi-chicago.jpg). A vision-capable review of the downloaded image (2026-08-13) confirmed the device's painted front-panel text reads DINSHAH-ATTUNED COLOR WAVES-SEMAPHORE and its base plate reads SPECTRO-CHROME INSTITUTE, MALAGA, NEW JERSEY, matching the Commons file title; the device also shows a six-pointed star/wheel diagram with color-code letters and a two-column 'COMBINATION' color-code chart, and a coiled cloth-covered power cord; no filters or glass slides are visible/discernible through the device's central lamp aperture in this photograph, and no person is depicted.