Zenith changed their software packaging a few times
over the years.
This is the same packaging as what I have on OS/2 1.0, and MS-DOS
Consequently, looking back at the calendar, I think that
it's far more likely that this is Windows 2.0 or 2.1.
It's not much help, but the first Z248 that we recieved had MS-DOS 3.x and
Windows 1.0x floppies included with it.
I've never seen a copy of Windows 2.x, however, oddly enough I recently
found a shrinkwrapped copy of Windows 1.0 in the trash!
On a vaguely interesting Windows 1.x note, the PC version of the game
"Balance of Power" included just enough of Windows 1.x to run the game! It
was the only use I ever had for Windows 1.x :^)