License permits: Sharing, copying and redistributing in any medium or format including adapting, remixing, transforming, and building upon the material for any purpose, even commercially. The image may be redistributed for free under the same Creative Commons license but may not be sold, attribution is required to obtain and maintain a license.
License: Creative Commons 3 – CC BY-SA 3.0
Attribution: Alpha Stock Images – http://alphastockimages.com/
Original Author: Nick Youngson – http://www.nyphotographic.com/
Original Image: http://www.picpedia.org/clipboard/bonds.html