The legendary IBM Model M Space Saver Keyboard (SSK), 1992 vintage.I bought this new at a ham radio convention in 1998. Used it for a couple years, then switched to a Mac and kept it in the closet. It's missing two (rarely used) keycaps as shown in the photo, but everything works and all the keys have the trademark clickiness.Includes a Belkin USB adapter.

On Jan-20-15 at 19:11:06 PST, seller added the following information:

I'm told this is an "industrial SSK", which makes it somewhat unique. Attached a photo taken without iphone filters, as there have been considerable concerns about the color.