Alas, I wasn't able to install OS/2 Version 2; I don't know if install diskette 1 was bad or what, but it just locked up, the cursor not even blinking. And, sadly, the box only included diskettes, so I can't generate new ones from the CD.
However, I was able to get two later versions running, so I can inflict upon you this screenshot of Windows XP simultaneously running both OS/2 Warp 3 and Warp 4 through the magic of bochs, with Windows 3.1 Program Manager running inside Warp 3 for added comedic effect. Click for full-sized OS geekery.
And now to convert those documents I was originally after when I started this mad quest...