Trading card photo of Billy Harris as a member of the Toronto Maple Leafs. These cards were printed on the backs of Chex cereal boxes in the US and Canada from <a rel="nofollow" class="external text" href="http://www.network54.com/Forum/381767/thread/1193535045/last-1193796628/Chex+Cereal">1963</a> to <a rel="nofollow" class="external text" href="http://www.psacard.com/PSASetRegistry/alltimeset.aspx?s=109359">1965</a>.  Those collecting the cards cut them from the back of the boxes. <a rel="nofollow" class="external text" href="http://www.psacard.com/PSASetRegistry/MemberImageGallery.aspx?m=5598&amp;s=109359&amp;Page=1">Harris' card</a> at PSA.
Ralrton-Purina Company, maker of Chex cereals
<p><a rel="nofollow" class="external text" href="http://www.ebay.com/itm/1963-65-Chex-Photo-Hockey-Card-Billy-Harris-/380348240495?pt=US_Hockey_Trading_Cards&amp;hash=item588e85926f">eBay</a>
<a rel="nofollow" class="external text" href="http://www.simoncards.com/simoncards/26245a.jpg">front</a>
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<a rel="nofollow" class="external text" href="http://www.simoncards.com/simoncards/26245b.jpg">back</a>