Windows 1.0 1985-06-29 build

The Windows 1.0 1985-06-29 build is a build of Windows 1.0. A Windows Write disk with this date on the label (therefore implying the existence of an associated Windows build) turned up on the Japanese marketplace site Mercari on 8 November 2020, and was later sold a couple months later in January 2021. The buyer of the disk is unknown, as is any other information about this version of Write or Windows.