there's something i dont really understand , concerning chicago bulls logo ...  after few quick researchs,  it seem a bit obscur , about the copyright & or creative commons licence registration on this artwork..    the strange part is:  "aparently" there's no official registration from chicago bulls, and google seems perturbated too on this point....




any explainations ?


edit: this seem confirmed too..  http://www.publicdomainpictures.net/hledej.php?x=0&y=0&hleda=chicago+bull