Windows 1.0 September 1985 builds

The Windows 1.0 September 1985 builds were several sets of builds of Windows 1.0 that turned up on the Japanese marketplace site Mercari on 8 November 2020, and were later sold a couple months later in January 2021. A buyer of these disks is unknown, meaning these are currently lost.

Among the following sets of disks seen in the photos include these builds from September 1985:
 * 09-09-1985 Beta Release (Desktop Applications Disk)
 * 09-25-1985 Retail Beta Release (Date is crossed out, meaning it was likely later overwritten with the next set)
 * 09-30-1985 Retail Beta Release