Just wanted to jump on with this link to a XO badge I saw this on ebay - if you need to do a search, do it on "Sorority Pin" and look for the blurb "Unusual Vintage Sorority pin"
http://cgi.ebay.com/aw-cgi/eBayISAPI...tem=1068437865
Seller doesn't know which group it belongs to ..
People, eh?