File:PlugCover.jpg

Fair Use Rationale

 * The image is low resolution, and utterly unsuitable for reproduction
 * The image is of a visual artwork, and is necessary to illustrate the object's tactility, size and visual qualities that would otherwise be very hard to articulate with words
 * The image is intended solely for educative and illustrative usage.
 * There is no other image that can replace it in the public domain.