Also (because I was curious and searched ebay for the term "sigma iota chi") I came up with
this:
Item number: 230407414225
The Parchment-- 1947 Sigma Iota Chi College sorority book
It ships from York, PA, if that helps at all. I think it's probably their publication or something. It's 10 bucks plus shipping if you're interested.
Also I just found from googling "sigma iota chi" plus Widener that there were several women who listed SIX as a college activity, and from what I found it must have been in existence between the dates of 1977-1986. Also it was listed that at that time some of the women attended "Brandywine College of Widener University", which apparently was a college that was absorbed by Widener in 1976. I also found through a public facebook group that there were women in SIX up until the year 1988, all who hailed from Brandywine College. From what I can piece together it was a local GLO that must have disbanded some time after that. However you could probably also email the head of Greek life at Widener (contact info can be found
here) for more information and history about Widener GLO's.