Windows 1.0 InfoWorld 1983-11-21 build

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 issue actually features photos of two different builds. This build is featured on the cover and in an additional photo in the article itself and looks very similar to the build shown at Fall COMDEX 1983 a week after the issue was published. The system date is set to 14 November 1983 in these two photos, so assuming that's when the photos were taken, the build itself must be older than that.