Original Vintage 1985 IBM Model : M Part No.1392366 Keyboard (eBay)
1392366 -- The original keyboard option of the IBM PC RT 6150, a Unix workstation launched in 1986 powered by a predecessor of IBM's POWER RISC architecture... Similar to the 1390131, with slightly different key legends... an internal speaker, and non-removable cable with a bulky 6-pin AMP connector. Relatively few were produced before they were replaced by rubber-dome keyboards made by NMB (possibly as a cost-cutting measure when the $20,000 RT failed to sell well); consequently 1392366's are very rare.
-- Deskthority's IBM Enhanced Keyboard page
Ends today, 11:39 PST. Current bid at time of this posting: $35.00 + shipping.
Looks like it's in nice shape. Of course no converter exists for it, so you won't be able to actually
use it. You could replace its controller and cable, but then it'd just be a 1391401 with a rare label. No, far better to keep it as-is and have another large, rare paperweight cluttering up the house.
