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".

This image is in the public domain because it is a mere mechanical scan or photocopy of a public domain original, or – from the available evidence – is so similar to such a scan or photocopy that no copyright protection can be expected to arise. The original itself is in the public domain for the following reason:
This image is in the public domain in countries and areas where the copyright term for anonymous or pseudonymous works is 70 years from the year of first publication or less, for example in the European Union.

Please give also an explanation why the work is in the public domain in its source country and in the United States. If this work was published after 1928 and it was not in the public domain in its source country on the URAA date (January 1, 1996 for most countries), use {{Not-PD-US-URAA}} in addition to this template. For files in the public domain in the EU, please use {{PD-anon-70-EU}} (see the documentation).

беларуская (тарашкевіца) | dansk | Deutsch | English | français | македонски | 日本語 | suomi | +/−

Flag of Europe
Flag of Europe

This tag is designed for use where there may be a need to assert that any enhancements (eg brightness, contrast, colour-matching, sharpening) are in themselves insufficiently creative to generate a new copyright. It can be used where it is unknown whether any enhancements have been made, as well as when the enhancements are clear but insufficient. For known raw unenhanced scans you can use an appropriate {{PD-old}} tag instead. For usage, see Commons:When to use the PD-scan tag.


Note: This tag applies to scans and photocopies only. For photographs of public domain originals taken from afar, {{PD-Art}} may be applicable. See Commons:When to use the PD-Art tag.
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, 1929.

Public domain works must be out of copyright in both the United States and in the source country of the work in order to be hosted on the Commons. If the work is not a U.S. work, the file must have an additional copyright tag indicating the copyright status in the source country.
Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Kaninchen_und_Ente.png

Captions

Add a one-line explanation of what this file represents

Items portrayed in this file

depicts

23 October 1892Gregorian

File history

Click on a date/time to view the file as it appeared at that time.

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

Global file usage

Metadata