So I succumbed to temptation, and bought one of these. It's so similar to the Affirmative 1227T that most of the
writeup on my site is a straight copy-and-paste job from the 1227T page. The only external differences are that the IBM has an oval logo, a nicer-looking LED insert, an SDL connector and no drainage channels. Oh, and the barrel plate is cream-coloured, rather than black.
Anyway, like nicolasavru's, it arrived in its original box, without a cable but with a Windows 3.0 driver floppy. (I think 1396400 must be the serial number of the box+keyboard+driver package). I went to the trouble of installing Windows 3.0 on my scratch PC, just to take a look at the driver. With the driver installed, all the extra keys sent VK_ codes, but the codes sent by F17 to F24 don't match the ones in
. I went digging, and found that the 16-bit Windows DDK (at least, the two versions I could check) has incorrect definitions for F17 and F18, and no definitions at all for F19 to F24. Fortunately the Windows 2000 DDK seems to get it right.
And yes, the LEDs work :-)