File:Escher circlelimit iv-with overlay.png

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Escher_circlelimit_iv-with_overlay.png (320 × 320 pixels, file size: 237 KB, MIME type: image/png)

Summary

Media data and Non-free use rationale
Description Escher art work "Circle Limits IV" 1960, low resolution example hyperbolic tiling, with symmetry mirror overlay added.
Author or
copyright owner
M.C. Escher
Source (
WP:NFCC#4
)
http://www.mcescher.com/Gallery/recogn-bmp/LW436.jpg
Date of publication 1960
Use in article (
WP:NFCC#7
)
Order-6 square tiling
Purpose of use in article (
WP:NFCC#8
)
To support encyclopedic discussion of this work in this article. The illustration is specifically needed to support the following point(s):

Example of hyperbolic symmetry in art

Not replaceable with
free media because
(
WP:NFCC#1
)
n.a.
Minimal use (
WP:NFCC#3
)
# It is a low resolution image. (320 pixels)
  1. Its inclusion in the article adds significantly to the article because the print and its historical significance are the object of discussion in the article.
Respect for
commercial opportunities
(
WP:NFCC#2
)
n.a.
Fair useFair use of copyrighted material in the context of Order-6 square tiling//en.wikipedia.org/wiki/File:Escher_circlelimit_iv-with_overlay.pngtrue

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