Ha, that must've set a record for shortest keyboard listing!
It's a recycler with a ton of stuff listed, so you could assume it was just a case of quantity vs. knowledge. But they knew enough to list the system number and name, and it was obviously in excellent condition... Weird! Well, I'm glad someone got such a good deal.
One can't help optimistically scrolling down to the "similar items" section, in the hopes they had a carload of them—but no. :?)