Windows 1.0 InfoWorld 1983-11-21 build

The Windows 1.0 InfoWorld 1983-11-21 build is a very early pre-release build of Windows 1.0, originally shown in an article about Microsoft Windows in the 21 November 1983 issue of the InfoWorld magazine. The article mentions that the build was demonstrated for InfoWorld at Microsoft's offices in Bellevue, Washington. The system date in the photos is 14 November 1983, presumably the day the demo took place. A third photo in the same article appears to be of a different, earlier build.