File:RhythmiconMoscow.jpg

Description: Low-resolution reproduction of photograph of the third and last Rhythmicon built by Leon Theremin Copyright holder: Moscow Conservatory/Theremin Center Source: Theremin Center

Fair use in Rhythmicon
Though subject to copyright, the image linked here is claimed by Wikipedia editor DCGeist to be used under fair use as:
 * 1) it is a photograph of a historically significant instrument from an educational instituttion;
 * 2) it is of much lower resolution than the original (copies made from it will be of very inferior quality);
 * 3) the photo is being used only for informational purposes;
 * 4) as the object is unique, no free equivalent is available or could be created that would adequately illustrate it;
 * 5) its inclusion in Rhythmicon adds significantly to the article because it illustrates Thermin's later version of the device that is the article's subject.