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200808 - p31m

Copyright 2008 S.Monnier

This image is part of a series of 17 images, displaying patterns with the symmetries of the 17 wallpaper groups.

This is the group p31m, which contains three families of order 3 rotations. There are reflexion axes which pass only through one family of rotation centers. The two remaining families of order 3 rotations are mirror of each other. (The symmetry is slightly broken by the circular central part of the image...)
 
 
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