Original file (1,414 × 1,200 pixels, file size: 131 KB, MIME type: image/png)

Summary

Description
English: "Kaninchen und Ente" ("Rabbit and Duck"), the earliest known version of the duck–rabbit illusion, from the 23 October 1892 issue of Fliegende Blätter (http://diglit.ub.uni-heidelberg.de/diglit/fb97/0147?sid=8af6d821538a1926abf44c9a95c40951&zoomlevel=2). It is captioned, "Welche Thiere gleichen einander am meisten?" ("Which animals are most like each other?")
Date
Source Detail from scanned page of Fliegende Blätter, full page: Flegende-Blatter-1892.png
Author Unknown artistUnknown artist

Licensing

According to "Science in the Making: Right Hand, Left Hand. II: The duck–rabbit figure archive copy at the Wayback Machine", the image appears in Fliegende Blätter "without any attribution".

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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1930.
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23 October 1892Gregorian

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Date/TimeThumbnailDimensionsUserComment
current16:35, 7 August 2012Thumbnail for version as of 16:35, 7 August 20121,414 × 1,200 (131 KB)GemenaBetter quality scan, larger size. PNG, 16 colours.
06:47, 3 February 2012Thumbnail for version as of 06:47, 3 February 2012784 × 619 (356 KB)InverseHypercubeusing Google Books Downloader instead of screenshot
05:55, 3 February 2012Thumbnail for version as of 05:55, 3 February 2012750 × 587 (354 KB)InverseHypercuberm border
05:51, 3 February 2012Thumbnail for version as of 05:51, 3 February 2012750 × 590 (354 KB)InverseHypercube

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Allikas: https://en.wikipedia.org/wiki/File:Kaninchen_und_Ente.png
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