From Instructables: http://www.instructables.com/id/Two-Image-Sliding-Card/
CC-By-NC-SA Britt Michelsen
From Instructables: http://www.instructables.com/id/Two-Image-Sliding-Card/
CC-By-NC-SA Britt Michelsen
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Corrected the licence and added attribution. It's CC-By-NC-SA, and certainly not public domain.