They were created on Quark 3.31 or 3.32. Since posting this Frank provided me with the ISOs for the one issue he got those files from. I couldn't open the initial ones because once they touch Windows they lose their file association in Mac. So the Mac just saw them as documents.
I am currently going through all the content pages and replacing all the missing fonts. After that I have to go back and put back the missing images and artwork. I'm going this in Illustrator on Windows; I exported the Quark files to EPS files on the iMac and brought them over to Windows.
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