Adobe Illustrator 1.x

Adobe Illustrator is a vector graphics editor developed and marketed by Adobe Systems. It was often sold as a companion product to the bit-map/photo editor Adobe Photoshop. Illustrator was originally released in 1987 for the Apple Macintosh. Early versions were ported to NexT, Silicon Graphics, and Sun Solaris.
Comments
Personally I think it never exist. There was version 1.1 for Windows 3.0 (early 1991), and the next version for Windows was 4.0.
Wikipedia: "The first version of Illustrator for Windows, version 2.0, was released in early 1989 and flopped."
Wikipedia is wrong.
I have attached the proof, but haven't tested it yet.